57255424 has 20 divisors (see below), whose sum is σ = 114400044. Its totient is φ = 28627456.

The previous prime is 57255413. The next prime is 57255431. The reversal of 57255424 is 42455275.

It is a self number, because there is not a number n which added to its sum of digits gives 57255424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55402 + ... + 56425.

Almost surely, 2^57255424 is an apocalyptic number.

It is an amenable number.

57255424 is a deficient number, since it is larger than the sum of its proper divisors (57144620).

57255424 is an equidigital number, since it uses as much as digits as its factorization.

57255424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111845 (or 111829 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 57255424 is about 7566.7313947305. The cubic root of 57255424 is about 385.4241101356.

The spelling of 57255424 in words is "fifty-seven million, two hundred fifty-five thousand, four hundred twenty-four".