57430656 has 48 divisors (see below), whose sum is σ = 165266010. Its totient is φ = 19143168.

The previous prime is 57430651. The next prime is 57430669. The reversal of 57430656 is 65603475.

57430656 is a `hidden beast` number, since 574 + 30 + 6 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54997056 + 2433600 = 7416^2 + 1560^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 57430656.

It is not an unprimeable number, because it can be changed into a prime (57430651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23775 + ... + 26078.

Almost surely, 2^57430656 is an apocalyptic number.

It is an amenable number.

57430656 is an abundant number, since it is smaller than the sum of its proper divisors (107835354).

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

57430656 is a wasteful number, since it uses less digits than its factorization.

57430656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49873 (or 49858 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 57430656 is about 7578.3016567038. The cubic root of 57430656 is about 385.8169104941.

The spelling of 57430656 in words is "fifty-seven million, four hundred thirty thousand, six hundred fifty-six".