57499913 has 4 divisors (see below), whose sum is σ = 58227840. Its totient is φ = 56771988.

The previous prime is 57499907. The next prime is 57499921. The reversal of 57499913 is 31999475.

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 a cyclic number.

It is not a de Polignac number, because 57499913 - 2¹⁴ = 57483529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57499943) 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, 363845 + ... + 364002.

It is an arithmetic number, because the mean of its divisors is an integer number (14556960).

Almost surely, 2^57499913 is an apocalyptic number.

It is an amenable number.

57499913 is a deficient number, since it is larger than the sum of its proper divisors (727927).

57499913 is an equidigital number, since it uses as much as digits as its factorization.

57499913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727926.

The product of its digits is 306180, while the sum is 47.

The square root of 57499913 is about 7582.8697074393. The cubic root of 57499913 is about 385.9719368038.

The spelling of 57499913 in words is "fifty-seven million, four hundred ninety-nine thousand, nine hundred thirteen".