57148920 has 48 divisors (see below), whose sum is σ = 185735160. Its totient is φ = 15239616.

The previous prime is 57148913. The next prime is 57148921. The reversal of 57148920 is 2984175.

57148920 is a `hidden beast` number, since 571 + 4 + 89 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57148921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79014 + ... + 79733.

Almost surely, 2^57148920 is an apocalyptic number.

It is an amenable number.

57148920 is an abundant number, since it is smaller than the sum of its proper divisors (128586240).

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

57148920 is a wasteful number, since it uses less digits than its factorization.

57148920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158764 (or 158757 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 57148920 is about 7559.6904698539. The cubic root of 57148920 is about 385.1849788561.

The spelling of 57148920 in words is "fifty-seven million, one hundred forty-eight thousand, nine hundred twenty".