522
522 is a non-standard Cloudflare status code meaning the connection to the origin timed out.
- Even
- Composite
Where 522 fits
Why 522 is special
522 means the handshake never completed — the origin accepted nothing within the window. It is distinct from 524, where the connection opened and the response took too long. The pair separate 'cannot reach' from 'too slow', which a standard 504 collapses into one.
Not just a mathematical number
522is also used in ways where ordinary arithmetic doesn't apply — each listed below with what genuinely does and doesn't follow from it.
- Mathematical number
A genuine quantity — its mathematical properties (prime, square, factors, and so on) are real facts about it.
A genuine quantity that ordinary arithmetic applies to — it can be prime, even, a perfect square, added to another number meaningfully, and so on.
- Code
Also used as a code — HTTP status codes.
An assigned identifier from a fixed registry or standard — its digits don't represent an amount, and arithmetic on it is meaningless (HTTP status 404 + 1 is not a 'better' status; it's a different, unrelated code).
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522
- Prime factorisation
- 2 × 3^2 × 29
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 522
- Binary
- 1000001010
- Octal
- 1012
- Hexadecimal
- 20a
- Roman numeral
- DXXII
- Scientific notation
- 5.220 × 10^2
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
522 reports that a connection to the origin server never completed, information standard HTTP collapses into a generic 504.
504 is the standard gateway timeout. Cloudflare's 522 narrows it to a connection that never opened, separating an unreachable origin from a slow one.
View 504 →Technology & computing
CWE-522 covers credentials stored or transmitted with protection that is present but inadequate, such as unsalted hashing or reversible encoding.
DocumentedTechnology & computingGeography: International — MITRE CWEPeriod: 2006–522 means the connection to the origin never completed; 524 means it opened and the response took too long. Standard HTTP collapses both into 504, so the split is genuinely useful diagnostic information — one points at firewalls and downed services, the other at slow queries.
DocumentedTechnology & computing
Common questions
Is 522 a prime number?
No, 522 is not prime.
What are the factors of 522?
The factors of 522 are 1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522.
What is 522 in Roman numerals?
522 in Roman numerals is DXXII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 3 August 2026