57316224 has 64 divisors (see below), whose sum is σ = 174003840. Its totient is φ = 16375296.

The previous prime is 57316223. The next prime is 57316249. The reversal of 57316224 is 42261375.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 57316191 and 57316200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57316223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7974 + ... + 13349.

It is an arithmetic number, because the mean of its divisors is an integer number (2718810).

Almost surely, 2^57316224 is an apocalyptic number.

It is an amenable number.

57316224 is an abundant number, since it is smaller than the sum of its proper divisors (116687616).

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

57316224 is a wasteful number, since it uses less digits than its factorization.

57316224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21347 (or 21335 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 57316224 is about 7570.7479154969. The cubic root of 57316224 is about 385.5604902041.

Adding to 57316224 its reverse (42261375), we get a palindrome (99577599).

The spelling of 57316224 in words is "fifty-seven million, three hundred sixteen thousand, two hundred twenty-four".