57137628 has 12 divisors (see below), whose sum is σ = 133321160. Its totient is φ = 19045872.

The previous prime is 57137609. The next prime is 57137651. The reversal of 57137628 is 82673175.

57137628 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

57137628 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380723 + ... + 2380746.

Almost surely, 2^57137628 is an apocalyptic number.

It is an amenable number.

57137628 is an abundant number, since it is smaller than the sum of its proper divisors (76183532).

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

57137628 is a wasteful number, since it uses less digits than its factorization.

57137628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761476 (or 4761474 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 57137628 is about 7558.9435769822. The cubic root of 57137628 is about 385.1596077421.

The spelling of 57137628 in words is "fifty-seven million, one hundred thirty-seven thousand, six hundred twenty-eight".