57237090 has 16 divisors (see below), whose sum is σ = 137369088. Its totient is φ = 15263216.

The previous prime is 57237083. The next prime is 57237109. The reversal of 57237090 is 9073275.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953922 + ... + 953981.

It is an arithmetic number, because the mean of its divisors is an integer number (8585568).

Almost surely, 2^57237090 is an apocalyptic number.

57237090 is an abundant number, since it is smaller than the sum of its proper divisors (80131998).

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

57237090 is a wasteful number, since it uses less digits than its factorization.

57237090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907913.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 57237090 is about 7565.5198102972. The cubic root of 57237090 is about 385.3829663189.

The spelling of 57237090 in words is "fifty-seven million, two hundred thirty-seven thousand, ninety".