57559920 has 80 divisors (see below), whose sum is σ = 194666112. Its totient is φ = 13953280.

The previous prime is 57559903. The next prime is 57559927. The reversal of 57559920 is 2995575.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57559927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8262 + ... + 13541.

Almost surely, 2^57559920 is an apocalyptic number.

It is an amenable number.

57559920 is an abundant number, since it is smaller than the sum of its proper divisors (137106192).

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

57559920 is a wasteful number, since it uses less digits than its factorization.

57559920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21830 (or 21824 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 42.

The square root of 57559920 is about 7586.8254230607. The cubic root of 57559920 is about 386.1061570980.

The spelling of 57559920 in words is "fifty-seven million, five hundred fifty-nine thousand, nine hundred twenty".