57065031 has 12 divisors (see below), whose sum is σ = 82799808. Its totient is φ = 37871424.

The previous prime is 57065027. The next prime is 57065033. The reversal of 57065031 is 13056075.

57065031 is a `hidden beast` number, since 5 + 7 + 0 + 650 + 3 + 1 = 666.

It is not a de Polignac number, because 57065031 - 2² = 57065027 is a prime.

It is a super-2 number, since 2×57065031² = 6512835526061922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57064986 and 57065004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57065033) 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, 12210 + ... + 16223.

It is an arithmetic number, because the mean of its divisors is an integer number (6899984).

Almost surely, 2^57065031 is an apocalyptic number.

57065031 is a deficient number, since it is larger than the sum of its proper divisors (25734777).

57065031 is a wasteful number, since it uses less digits than its factorization.

57065031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28662 (or 28659 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 57065031 is about 7554.1399907600. The cubic root of 57065031 is about 384.9964153262.

The spelling of 57065031 in words is "fifty-seven million, sixty-five thousand, thirty-one".