57072036 has 48 divisors (see below), whose sum is σ = 152570880. Its totient is φ = 16265760.

The previous prime is 57072031. The next prime is 57072089. The reversal of 57072036 is 63027075.

It is a junction number, because it is equal to n+sod(n) for n = 57071994 and 57072012.

It is not an unprimeable number, because it can be changed into a prime (57072031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54841 + ... + 55871.

It is an arithmetic number, because the mean of its divisors is an integer number (3178560).

Almost surely, 2^57072036 is an apocalyptic number.

It is an amenable number.

57072036 is an abundant number, since it is smaller than the sum of its proper divisors (95498844).

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

57072036 is a wasteful number, since it uses less digits than its factorization.

57072036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 57072036 is about 7554.6036295758. The cubic root of 57072036 is about 385.0121680530.

The spelling of 57072036 in words is "fifty-seven million, seventy-two thousand, thirty-six".