57457136 has 40 divisors (see below), whose sum is σ = 125372928. Its totient is φ = 25272000.

The previous prime is 57457129. The next prime is 57457177. The reversal of 57457136 is 63175475.

It is a self number, because there is not a number n which added to its sum of digits gives 57457136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 10721.

Almost surely, 2^57457136 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 57457136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62686464).

57457136 is an abundant number, since it is smaller than the sum of its proper divisors (67915792).

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

57457136 is a wasteful number, since it uses less digits than its factorization.

57457136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581 (or 10575 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The square root of 57457136 is about 7580.0485486572. The cubic root of 57457136 is about 385.8761985858.

The spelling of 57457136 in words is "fifty-seven million, four hundred fifty-seven thousand, one hundred thirty-six".