57083720 has 16 divisors (see below), whose sum is σ = 128438460. Its totient is φ = 22833472.

The previous prime is 57083713. The next prime is 57083743. The reversal of 57083720 is 2738075.

57083720 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 53027524 + 4056196 = 7282^2 + 2014^2 .

It is a nialpdrome in base 13.

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, 713507 + ... + 713586.

Almost surely, 2^57083720 is an apocalyptic number.

It is an amenable number.

57083720 is an abundant number, since it is smaller than the sum of its proper divisors (71354740).

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

57083720 is a wasteful number, since it uses less digits than its factorization.

57083720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427104 (or 1427100 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57083720 is about 7555.3768933125. The cubic root of 57083720 is about 385.0384399691.

The spelling of 57083720 in words is "fifty-seven million, eighty-three thousand, seven hundred twenty".