57232164 has 24 divisors (see below), whose sum is σ = 145682208. Its totient is φ = 17343040.

The previous prime is 57232159. The next prime is 57232247. The reversal of 57232164 is 46123275.

It is a super-2 number, since 2×57232164² = 6551041192245792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216657 + ... + 216920.

It is an arithmetic number, because the mean of its divisors is an integer number (6070092).

Almost surely, 2^57232164 is an apocalyptic number.

It is an amenable number.

57232164 is an abundant number, since it is smaller than the sum of its proper divisors (88450044).

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

57232164 is a wasteful number, since it uses less digits than its factorization.

57232164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433595 (or 433593 counting only the distinct ones).

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

The square root of 57232164 is about 7565.1942473409. The cubic root of 57232164 is about 385.3719102539.

Subtracting from 57232164 its reverse (46123275), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 5723 and 2164, that added together give a palindrome (7887).

The spelling of 57232164 in words is "fifty-seven million, two hundred thirty-two thousand, one hundred sixty-four".