57000992 has 24 divisors (see below), whose sum is σ = 117101376. Its totient is φ = 27260992.

The previous prime is 57000991. The next prime is 57001003. The reversal of 57000992 is 29900075.

It is a super-2 number, since 2×57000992² = 6498226177968128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (57000991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37988 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (4879224).

Almost surely, 2^57000992 is an apocalyptic number.

It is an amenable number.

57000992 is an abundant number, since it is smaller than the sum of its proper divisors (60100384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57000992 is a wasteful number, since it uses less digits than its factorization.

57000992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77480 (or 77472 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 57000992 is about 7549.9001317898. The cubic root of 57000992 is about 384.8523456955.

The spelling of 57000992 in words is "fifty-seven million, nine hundred ninety-two", and thus it is an aban number.