57228224 has 14 divisors (see below), whose sum is σ = 113562384. Its totient is φ = 28614080.

The previous prime is 57228173. The next prime is 57228253. The reversal of 57228224 is 42282275.

57228224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447032 + ... + 447159.

Almost surely, 2^57228224 is an apocalyptic number.

It is an amenable number.

57228224 is a deficient number, since it is larger than the sum of its proper divisors (56334160).

57228224 is an equidigital number, since it uses as much as digits as its factorization.

57228224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894203 (or 894193 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 57228224 is about 7564.9338397636. The cubic root of 57228224 is about 385.3630667408.

The spelling of 57228224 in words is "fifty-seven million, two hundred twenty-eight thousand, two hundred twenty-four".