59905 has 4 divisors (see below), whose sum is σ = 71892. Its totient is φ = 47920.

The previous prime is 59887. The next prime is 59921. The reversal of 59905 is 50995.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 16641 = 208^2 + 129^2 .

It is not a de Polignac number, because 59905 - 2⁹ = 59393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5986 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (17973).

It is a Proth number, since it is equal to 117 ⋅ 2⁹ + 1 and 117 < 2⁹.

2⁵⁹⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

59905 is a deficient number, since it is larger than the sum of its proper divisors (11987).

59905 is a wasteful number, since it uses less digits than its factorization.

59905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 59905 is about 244.7549795203. The cubic root of 59905 is about 39.1280036958.

It can be divided in two parts, 5990 and 5, that added together give a palindrome (5995).

The spelling of 59905 in words is "fifty-nine thousand, nine hundred five".