57431656 has 8 divisors (see below), whose sum is σ = 107684370. Its totient is φ = 28715824.

The previous prime is 57431653. The next prime is 57431669. The reversal of 57431656 is 65613475.

57431656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51984100 + 5447556 = 7210^2 + 2334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×57431656² = 6596790221804672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57431651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3589471 + ... + 3589486.

Almost surely, 2^57431656 is an apocalyptic number.

It is an amenable number.

57431656 is a deficient number, since it is larger than the sum of its proper divisors (50252714).

57431656 is a wasteful number, since it uses less digits than its factorization.

57431656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178963 (or 7178959 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 57431656 is about 7578.3676342600. The cubic root of 57431656 is about 385.8191498014.

The spelling of 57431656 in words is "fifty-seven million, four hundred thirty-one thousand, six hundred fifty-six".