57039680 has 28 divisors (see below), whose sum is σ = 135826500. Its totient is φ = 22815744.

The previous prime is 57039677. The next prime is 57039707. The reversal of 57039680 is 8693075.

It can be written as a sum of positive squares in 2 ways, for example, as 40653376 + 16386304 = 6376^2 + 4048^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88805 + ... + 89444.

Almost surely, 2^57039680 is an apocalyptic number.

It is an amenable number.

57039680 is an abundant number, since it is smaller than the sum of its proper divisors (78786820).

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

57039680 is a wasteful number, since it uses less digits than its factorization.

57039680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178266 (or 178256 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 57039680 is about 7552.4618502843. The cubic root of 57039680 is about 384.9393956441.

The spelling of 57039680 in words is "fifty-seven million, thirty-nine thousand, six hundred eighty".