57023931 has 8 divisors (see below), whose sum is σ = 76328784. Its totient is φ = 37867520.

The previous prime is 57023909. The next prime is 57023951. The reversal of 57023931 is 13932075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57023931 - 2⁷ = 57023803 is a prime.

It is a super-2 number, since 2×57023931² = 6503457413385522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57023951) 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, 36210 + ... + 37751.

It is an arithmetic number, because the mean of its divisors is an integer number (9541098).

Almost surely, 2^57023931 is an apocalyptic number.

57023931 is a deficient number, since it is larger than the sum of its proper divisors (19304853).

57023931 is a wasteful number, since it uses less digits than its factorization.

57023931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74221.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 57023931 is about 7551.4191381488. The cubic root of 57023931 is about 384.9039643526.

The spelling of 57023931 in words is "fifty-seven million, twenty-three thousand, nine hundred thirty-one".