57813239 has 8 divisors (see below), whose sum is σ = 64607760. Its totient is φ = 51275200.

The previous prime is 57813169. The next prime is 57813253. The reversal of 57813239 is 93231875.

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 57813239 - 2²⁰ = 56764663 is a prime.

It is a super-2 number, since 2×57813239² = 6684741207342242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57813289) 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, 63644 + ... + 64545.

It is an arithmetic number, because the mean of its divisors is an integer number (8075970).

Almost surely, 2^57813239 is an apocalyptic number.

57813239 is a deficient number, since it is larger than the sum of its proper divisors (6794521).

57813239 is a wasteful number, since it uses less digits than its factorization.

57813239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128241.

The product of its digits is 45360, while the sum is 38.

The square root of 57813239 is about 7603.5017590581. The cubic root of 57813239 is about 386.6717409989.

The spelling of 57813239 in words is "fifty-seven million, eight hundred thirteen thousand, two hundred thirty-nine".