57655228 has 12 divisors (see below), whose sum is σ = 106831872. Its totient is φ = 27131840.

The previous prime is 57655207. The next prime is 57655231. The reversal of 57655228 is 82255675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423868 + ... + 424003.

It is an arithmetic number, because the mean of its divisors is an integer number (8902656).

Almost surely, 2^57655228 is an apocalyptic number.

It is an amenable number.

57655228 is a deficient number, since it is larger than the sum of its proper divisors (49176644).

57655228 is a wasteful number, since it uses less digits than its factorization.

57655228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847892 (or 847890 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 57655228 is about 7593.1039766356. The cubic root of 57655228 is about 386.3191450801.

The spelling of 57655228 in words is "fifty-seven million, six hundred fifty-five thousand, two hundred twenty-eight".