57072506172 has 48 divisors (see below), whose sum is σ = 145671439872. Its totient is φ = 17247559680.

The previous prime is 57072506171. The next prime is 57072506177. The reversal of 57072506172 is 27160527075.

57072506172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57072506171) 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, 540613 + ... + 637500.

It is an arithmetic number, because the mean of its divisors is an integer number (3034821664).

Almost surely, 2^57072506172 is an apocalyptic number.

It is an amenable number.

57072506172 is an abundant number, since it is smaller than the sum of its proper divisors (88598933700).

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

57072506172 is a wasteful number, since it uses less digits than its factorization.

57072506172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178498 (or 1178496 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 57072506172 in words is "fifty-seven billion, seventy-two million, five hundred six thousand, one hundred seventy-two".