57913236 has 36 divisors (see below), whose sum is σ = 148403892. Its totient is φ = 19039104.

The previous prime is 57913223. The next prime is 57913243. The reversal of 57913236 is 63231975.

It can be written as a sum of positive squares in 2 ways, for example, as 18147600 + 39765636 = 4260^2 + 6306^2 .

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 57913236.

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, 8391 + ... + 13646.

Almost surely, 2^57913236 is an apocalyptic number.

It is an amenable number.

57913236 is an abundant number, since it is smaller than the sum of its proper divisors (90490656).

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

57913236 is a wasteful number, since it uses less digits than its factorization.

57913236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22120 (or 22115 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 57913236 is about 7610.0746382674. The cubic root of 57913236 is about 386.8945489185.

The spelling of 57913236 in words is "fifty-seven million, nine hundred thirteen thousand, two hundred thirty-six".