57056526 has 24 divisors (see below), whose sum is σ = 124571304. Its totient is φ = 18872880.

The previous prime is 57056521. The next prime is 57056551. The reversal of 57056526 is 62565075.

57056526 is a `hidden beast` number, since 5 + 70 + 565 + 26 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57056521) 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, 9741 + ... + 14456.

It is an arithmetic number, because the mean of its divisors is an integer number (5190471).

Almost surely, 2^57056526 is an apocalyptic number.

57056526 is an abundant number, since it is smaller than the sum of its proper divisors (67514778).

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

57056526 is a wasteful number, since it uses less digits than its factorization.

57056526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24336 (or 24333 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 57056526 is about 7553.5770334326. The cubic root of 57056526 is about 384.9772876915.

The spelling of 57056526 in words is "fifty-seven million, fifty-six thousand, five hundred twenty-six".