57513931 has 8 divisors (see below), whose sum is σ = 62629200. Its totient is φ = 52607520.

The previous prime is 57513923. The next prime is 57513943. The reversal of 57513931 is 13931575.

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 57513931 - 2³ = 57513923 is a prime.

It is a super-2 number, since 2×57513931² = 6615704518145522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57513901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51640 + ... + 52741.

It is an arithmetic number, because the mean of its divisors is an integer number (7828650).

Almost surely, 2^57513931 is an apocalyptic number.

57513931 is a deficient number, since it is larger than the sum of its proper divisors (5115269).

57513931 is a wasteful number, since it uses less digits than its factorization.

57513931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104429.

The product of its digits is 14175, while the sum is 34.

The square root of 57513931 is about 7583.7939713576. The cubic root of 57513931 is about 386.0032998367.

The spelling of 57513931 in words is "fifty-seven million, five hundred thirteen thousand, nine hundred thirty-one".