57055224 has 32 divisors (see below), whose sum is σ = 142906320. Its totient is φ = 18982656.

The previous prime is 57055223. The next prime is 57055237. The reversal of 57055224 is 42255075.

It is a junction number, because it is equal to n+sod(n) for n = 57055191 and 57055200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57055223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12882 + ... + 16734.

Almost surely, 2^57055224 is an apocalyptic number.

It is an amenable number.

57055224 is an abundant number, since it is smaller than the sum of its proper divisors (85851096).

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

57055224 is a wasteful number, since it uses less digits than its factorization.

57055224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 57055224 is about 7553.4908486077. The cubic root of 57055224 is about 384.9743593426.

The spelling of 57055224 in words is "fifty-seven million, fifty-five thousand, two hundred twenty-four".