57791985 has 32 divisors (see below), whose sum is σ = 97320960. Its totient is φ = 29227968.

The previous prime is 57791969. The next prime is 57792037. The reversal of 57791985 is 58919775.

It is not a de Polignac number, because 57791985 - 2⁴ = 57791969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43156 + ... + 44474.

It is an arithmetic number, because the mean of its divisors is an integer number (3041280).

Almost surely, 2^57791985 is an apocalyptic number.

It is an amenable number.

57791985 is a deficient number, since it is larger than the sum of its proper divisors (39528975).

57791985 is a wasteful number, since it uses less digits than its factorization.

57791985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its digits is 793800, while the sum is 51.

The square root of 57791985 is about 7602.1039850820. The cubic root of 57791985 is about 386.6243508819.

The spelling of 57791985 in words is "fifty-seven million, seven hundred ninety-one thousand, nine hundred eighty-five".