57312324 has 36 divisors (see below), whose sum is σ = 145367040. Its totient is φ = 19038960.

The previous prime is 57312289. The next prime is 57312329. The reversal of 57312324 is 42321375.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (57312329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8637 + ... + 13755.

Almost surely, 2^57312324 is an apocalyptic number.

It is an amenable number.

57312324 is an abundant number, since it is smaller than the sum of its proper divisors (88054716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57312324 is a wasteful number, since it uses less digits than its factorization.

57312324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440 (or 5435 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 57312324 is about 7570.4903407904. The cubic root of 57312324 is about 385.5517450362.

Adding to 57312324 its reverse (42321375), we get a palindrome (99633699).

It can be divided in two parts, 5731232 and 4, that added together give a square (5731236 = 2394²).

The spelling of 57312324 in words is "fifty-seven million, three hundred twelve thousand, three hundred twenty-four".