57142688 has 12 divisors (see below), whose sum is σ = 112499730. Its totient is φ = 28571328.

The previous prime is 57142681. The next prime is 57142691. The reversal of 57142688 is 88624175.

It can be written as a sum of positive squares in only one way, i.e., 36820624 + 20322064 = 6068^2 + 4508^2 .

It is not an unprimeable number, because it can be changed into a prime (57142681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892823 + ... + 892886.

Almost surely, 2^57142688 is an apocalyptic number.

It is an amenable number.

57142688 is a deficient number, since it is larger than the sum of its proper divisors (55357042).

57142688 is a wasteful number, since it uses less digits than its factorization.

57142688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785719 (or 1785711 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 57142688 is about 7559.2782724279. The cubic root of 57142688 is about 385.1709770747.

The spelling of 57142688 in words is "fifty-seven million, one hundred forty-two thousand, six hundred eighty-eight".