57083931 has 12 divisors (see below), whose sum is σ = 84466200. Its totient is φ = 37127520.

The previous prime is 57083921. The next prime is 57083941. The reversal of 57083931 is 13938075.

57083931 is a `hidden beast` number, since 570 + 83 + 9 + 3 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (57083921) and next prime (57083941).

It is not a de Polignac number, because 57083931 - 2²³ = 48695323 is a prime.

It is a super-2 number, since 2×57083931² = 6517150356825522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57083921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76981 + ... + 77718.

It is an arithmetic number, because the mean of its divisors is an integer number (7038850).

Almost surely, 2^57083931 is an apocalyptic number.

57083931 is a deficient number, since it is larger than the sum of its proper divisors (27382269).

57083931 is a wasteful number, since it uses less digits than its factorization.

57083931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154746 (or 154743 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 57083931 is about 7555.3908568651. The cubic root of 57083931 is about 385.0389143777.

The spelling of 57083931 in words is "fifty-seven million, eighty-three thousand, nine hundred thirty-one".