57326131 has 4 divisors (see below), whose sum is σ = 57405712. Its totient is φ = 57246552.

The previous prime is 57326123. The next prime is 57326177. The reversal of 57326131 is 13162375.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57326131 - 2³ = 57326123 is a prime.

It is a super-2 number, since 2×57326131² = 6572570590858322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57326131.

It is not an unprimeable number, because it can be changed into a prime (57326531) 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, 38700 + ... + 40153.

It is an arithmetic number, because the mean of its divisors is an integer number (14351428).

Almost surely, 2^57326131 is an apocalyptic number.

57326131 is a deficient number, since it is larger than the sum of its proper divisors (79581).

57326131 is an equidigital number, since it uses as much as digits as its factorization.

57326131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79580.

The product of its digits is 3780, while the sum is 28.

The square root of 57326131 is about 7571.4021818947. The cubic root of 57326131 is about 385.5827033895.

The spelling of 57326131 in words is "fifty-seven million, three hundred twenty-six thousand, one hundred thirty-one".