57509890 has 16 divisors (see below), whose sum is σ = 108019008. Its totient is φ = 22003696.

The previous prime is 57509849. The next prime is 57509891. The reversal of 57509890 is 9890575.

It is not an unprimeable number, because it can be changed into a prime (57509891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124792 + ... + 125251.

It is an arithmetic number, because the mean of its divisors is an integer number (6751188).

Almost surely, 2^57509890 is an apocalyptic number.

57509890 is a deficient number, since it is larger than the sum of its proper divisors (50509118).

57509890 is a wasteful number, since it uses less digits than its factorization.

57509890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250073.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 57509890 is about 7583.5275433007. The cubic root of 57509890 is about 385.9942592683.

The spelling of 57509890 in words is "fifty-seven million, five hundred nine thousand, eight hundred ninety".