57065872 has 20 divisors (see below), whose sum is σ = 117069516. Its totient is φ = 26854400.

The previous prime is 57065857. The next prime is 57065893. The reversal of 57065872 is 27856075.

It can be written as a sum of positive squares in 2 ways, for example, as 47554816 + 9511056 = 6896^2 + 3084^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104629 + ... + 105172.

Almost surely, 2^57065872 is an apocalyptic number.

It is an amenable number.

57065872 is an abundant number, since it is smaller than the sum of its proper divisors (60003644).

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

57065872 is a wasteful number, since it uses less digits than its factorization.

57065872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209826 (or 209820 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 57065872 is about 7554.1956553957. The cubic root of 57065872 is about 384.9983066210.

The spelling of 57065872 in words is "fifty-seven million, sixty-five thousand, eight hundred seventy-two".