57131456 has 28 divisors (see below), whose sum is σ = 115516152. Its totient is φ = 28025088.

The previous prime is 57131449. The next prime is 57131467. The reversal of 57131456 is 65413175.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5030 + ... + 11813.

Almost surely, 2^57131456 is an apocalyptic number.

It is an amenable number.

57131456 is an abundant number, since it is smaller than the sum of its proper divisors (58384696).

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

57131456 is a wasteful number, since it uses less digits than its factorization.

57131456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16908 (or 16898 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 57131456 is about 7558.5353078490. The cubic root of 57131456 is about 385.1457389439.

The spelling of 57131456 in words is "fifty-seven million, one hundred thirty-one thousand, four hundred fifty-six".