57515982 has 24 divisors (see below), whose sum is σ = 118373496. Its totient is φ = 18617184.

The previous prime is 57515959. The next prime is 57515999. The reversal of 57515982 is 28951575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112744 + ... + 113252.

It is an arithmetic number, because the mean of its divisors is an integer number (4932229).

Almost surely, 2^57515982 is an apocalyptic number.

57515982 is an abundant number, since it is smaller than the sum of its proper divisors (60857514).

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

57515982 is an equidigital number, since it uses as much as digits as its factorization.

57515982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 551 counting only the distinct ones).

The product of its digits is 126000, while the sum is 42.

The square root of 57515982 is about 7583.9291927074. The cubic root of 57515982 is about 386.0078881937.

The spelling of 57515982 in words is "fifty-seven million, five hundred fifteen thousand, nine hundred eighty-two".