57077031 has 24 divisors (see below), whose sum is σ = 84564592. Its totient is φ = 34214400.

The previous prime is 57077023. The next prime is 57077047. The reversal of 57077031 is 13077075.

It is not a de Polignac number, because 57077031 - 2³ = 57077023 is a prime.

It is a super-2 number, since 2×57077031² = 6515574935549922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57077031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57077011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34401 + ... + 36021.

Almost surely, 2^57077031 is an apocalyptic number.

57077031 is a deficient number, since it is larger than the sum of its proper divisors (27487561).

57077031 is a wasteful number, since it uses less digits than its factorization.

57077031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 57077031 is about 7554.9342154648. The cubic root of 57077031 is about 385.0233999383.

The spelling of 57077031 in words is "fifty-seven million, seventy-seven thousand, thirty-one".