57494531 has 4 divisors (see below), whose sum is σ = 57509712. Its totient is φ = 57479352.

The previous prime is 57494477. The next prime is 57494539. The reversal of 57494531 is 13549475.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57494531 - 2⁶ = 57494467 is a prime.

It is a super-2 number, since 2×57494531² = 6611242189819922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57494539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290 + ... + 11216.

It is an arithmetic number, because the mean of its divisors is an integer number (14377428).

Almost surely, 2^57494531 is an apocalyptic number.

57494531 is a deficient number, since it is larger than the sum of its proper divisors (15181).

57494531 is an equidigital number, since it uses as much as digits as its factorization.

57494531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180.

The product of its digits is 75600, while the sum is 38.

The square root of 57494531 is about 7582.5148202954. The cubic root of 57494531 is about 385.9598940854.

The spelling of 57494531 in words is "fifty-seven million, four hundred ninety-four thousand, five hundred thirty-one".