59
59 is a prime number, the atomic number of praseodymium, sitting directly before the highly composite 60.
- Odd
- Prime
Where 59 fits
Why 59 is special
59's clearest claim to fame is its position: the last prime before one of the most practically useful numbers, 60.
59 is part of
Factors & digit properties
- Divisors (2)
- 1, 59
- Prime factorisation
- 59
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 59
- Binary
- 111011
- Octal
- 73
- Hexadecimal
- 3b
- Roman numeral
- LIX
- Scientific notation
- 5.900 × 10^1
Other mathematical patterns
- Deficient number
- Safe prime
- Twin prime
Related numbers & connections
59 and 61 are twin primes — two primes exactly two apart.
View 61 →Shares a distinctive class
- is associated with61
why?
Strength 0.50, confidence "high".
Science
59 is the atomic number of praseodymium.
DocumentedScience
Mathematics
59 is prime, sitting directly before the highly composite number 60.
DocumentedMathematics
Common questions
Is 59 a prime number?
Yes, 59 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 59?
The factors of 59 are 1, 59.
What is 59 in Roman numerals?
59 in Roman numerals is LIX.
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