57557124 has 36 divisors (see below), whose sum is σ = 145732860. Its totient is φ = 19153920.

The previous prime is 57557117. The next prime is 57557131. The reversal of 57557124 is 42175575.

It is an interprime number because it is at equal distance from previous prime (57557117) and next prime (57557131).

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 39917124 = 4200^2 + 6318^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32584 + ... + 34304.

It is an arithmetic number, because the mean of its divisors is an integer number (4048135).

Almost surely, 2^57557124 is an apocalyptic number.

It is an amenable number.

57557124 is an abundant number, since it is smaller than the sum of its proper divisors (88175736).

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

57557124 is a wasteful number, since it uses less digits than its factorization.

57557124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660 (or 2655 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 57557124 is about 7586.6411540286. The cubic root of 57557124 is about 386.0999052345.

The spelling of 57557124 in words is "fifty-seven million, five hundred fifty-seven thousand, one hundred twenty-four".