57185352 has 120 divisors (see below), whose sum is σ = 186425910. Its totient is φ = 16329600.

The previous prime is 57185339. The next prime is 57185363. The reversal of 57185352 is 25358175.

57185352 is a `hidden beast` number, since 571 + 85 + 3 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 1920996 = 7434^2 + 1386^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30852 + ... + 32652.

Almost surely, 2^57185352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57185352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93212955).

57185352 is an abundant number, since it is smaller than the sum of its proper divisors (129240558).

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

57185352 is a wasteful number, since it uses less digits than its factorization.

57185352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1813 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 57185352 is about 7562.0997084143. The cubic root of 57185352 is about 385.2668122965.

The spelling of 57185352 in words is "fifty-seven million, one hundred eighty-five thousand, three hundred fifty-two".