52
52 is the atomic number of tellurium, and the number of cards in a standard deck.
- Even
- Composite
Where 52 fits
Why 52 is special
52's card-deck fame (four 13-card suits) sits close to, though isn't derived from, the 52 weeks in a year.
Same number, different meanings
How 52 is understood across different contexts — never implying one meaning because of another.
- Mathematics
52's card-deck fame (four 13-card suits) sits close to, though isn't derived from, the 52 weeks in a year.
- Science
52 is the atomic number of tellurium.
- Everyday life
A standard deck of playing cards has 52 cards, split into four 13-card suits — close to, though not derived from, the 52 weeks in a year.
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 13, 26, 52
- Prime factorisation
- 2^2 × 13
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 52
- Binary
- 110100
- Octal
- 64
- Hexadecimal
- 34
- Roman numeral
- LII
- Scientific notation
- 5.200 × 10^1
Other mathematical patterns
- Deficient number
Related numbers & connections
26 is a factor of 52 (26 × 2 = 52).
View 26 →53 and 52 are consecutive integers.
View 53 →Science
52 is the atomic number of tellurium.
DocumentedScience
Everyday life
A standard deck of playing cards has 52 cards, split into four 13-card suits — close to, though not derived from, the 52 weeks in a year.
DocumentedEveryday life
Common questions
Is 52 a prime number?
No, 52 is not prime.
What are the factors of 52?
The factors of 52 are 1, 2, 4, 13, 26, 52.
What is 52 in Roman numerals?
52 in Roman numerals is LII.
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: 15 July 2026