2500857156 has 48 divisors (see below), whose sum is σ = 6831619200. Its totient is φ = 697102080.

The previous prime is 2500857089. The next prime is 2500857193. The reversal of 2500857156 is 6517580052.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359631 + ... + 366518.

It is an arithmetic number, because the mean of its divisors is an integer number (142325400).

Almost surely, 2^2500857156 is an apocalyptic number.

It is an amenable number.

2500857156 is an abundant number, since it is smaller than the sum of its proper divisors (4330762044).

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

2500857156 is a wasteful number, since it uses less digits than its factorization.

2500857156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726204 (or 726202 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 2500857156 is about 50008.5708254095. The cubic root of 2500857156 is about 1357.3639025299.

The spelling of 2500857156 in words is "two billion, five hundred million, eight hundred fifty-seven thousand, one hundred fifty-six".