59 (number)

59 is the natural number following 58 and preceding 60.

List of numbers — Integers << 50 51 52 53 54 55 56 57 58 59 >>
Cardinal	fifty-nine
Ordinal	59th (fifty-ninth)
Factorization	prime
Roman numeral	LIX
Binary	111011
Hexadecimal	3B

Fifty-nine is the 17th smallest prime number. The next is sixty-one, with which it comprises a twin prime. 59 is an irregular prime.

There are 59 stellations of the icosahedron. These are discussed in H. S. M. Coxeter, P. Du Val, H. T. Flather, and J. F. Petrie's book The Fifty-Nine Icosahedra.

Fifty-nine is also:

• The atomic number of praseodymium, a lanthanide.
• The designation of Interstate 59, a freeway that runs from Louisiana to Georgia.
• The year AD 59, 59 BC, or 1959.
• Approximately the number of days in two lunar months.