59 (number)


59 is the natural number following 58 and preceding 60.

In mathematics

Fifty-nine is the 17th prime number. The next is sixty-one, with which it comprises a twin prime. 59 is an irregular prime, a safe prime and the 14th supersingular prime. It is an Eisenstein prime with no imaginary part and real part of the form. Since is divisible by 59 but 59 is not one more than a multiple of 15, 59 is a Pillai prime.
It is also a highly cototient number.
There are 59 stellations of the icosahedron.
59 is one of the factors that divides the smallest composite Euclid number. In this case 59 divides the Euclid number 13# + 1 = 2 × 3 × 5 × 7 × 11 × 13 + 1 = 59 × 509 = 30031.
59 is the highest integer a single symbol may represent in the Sexagesimal system.

In science

Fifty-nine is: