56657288 has 16 divisors (see below), whose sum is σ = 107974860. Its totient is φ = 27864000.

The previous prime is 56657281. The next prime is 56657317. The reversal of 56657288 is 88275665.

It can be written as a sum of positive squares in 2 ways, for example, as 36747844 + 19909444 = 6062^2 + 4462^2 .

It is not an unprimeable number, because it can be changed into a prime (56657281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57563 + ... + 58538.

Almost surely, 2^56657288 is an apocalyptic number.

It is an amenable number.

56657288 is a deficient number, since it is larger than the sum of its proper divisors (51317572).

56657288 is a wasteful number, since it uses less digits than its factorization.

56657288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116168 (or 116164 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 56657288 is about 7527.1035598031. The cubic root of 56657288 is about 384.0772594835.

The spelling of 56657288 in words is "fifty-six million, six hundred fifty-seven thousand, two hundred eighty-eight".