57488313 has 4 divisors (see below), whose sum is σ = 76651088. Its totient is φ = 38325540.

The previous prime is 57488279. The next prime is 57488329. The reversal of 57488313 is 31388475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57488313 - 2²⁰ = 56439737 is a prime.

It is a super-2 number, since 2×57488313² = 6609812263171938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57488383) 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, 9581383 + ... + 9581388.

It is an arithmetic number, because the mean of its divisors is an integer number (19162772).

Almost surely, 2^57488313 is an apocalyptic number.

It is an amenable number.

57488313 is a deficient number, since it is larger than the sum of its proper divisors (19162775).

57488313 is a wasteful number, since it uses less digits than its factorization.

57488313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19162774.

The product of its digits is 80640, while the sum is 39.

The square root of 57488313 is about 7582.1047869309. The cubic root of 57488313 is about 385.9459798046.

The spelling of 57488313 in words is "fifty-seven million, four hundred eighty-eight thousand, three hundred thirteen".