57113905 has 16 divisors (see below), whose sum is σ = 74635200. Its totient is φ = 41791680.

The previous prime is 57113893. The next prime is 57113909. The reversal of 57113905 is 50931175.

It is not a de Polignac number, because 57113905 - 2¹⁷ = 56982833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57113909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7611 + ... + 13120.

It is an arithmetic number, because the mean of its divisors is an integer number (4664700).

Almost surely, 2^57113905 is an apocalyptic number.

It is an amenable number.

57113905 is a deficient number, since it is larger than the sum of its proper divisors (17521295).

57113905 is a wasteful number, since it uses less digits than its factorization.

57113905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20784.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 57113905 is about 7557.3742133098. The cubic root of 57113905 is about 385.1062954939.

The spelling of 57113905 in words is "fifty-seven million, one hundred thirteen thousand, nine hundred five".