2500500256 has 24 divisors (see below), whose sum is σ = 5055912540. Its totient is φ = 1216459008.

The previous prime is 2500500253. The next prime is 2500500257. The reversal of 2500500256 is 6520050052.

It can be written as a sum of positive squares in 2 ways, for example, as 1809651600 + 690848656 = 42540^2 + 26284^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2500500256.

It is not an unprimeable number, because it can be changed into a prime (2500500253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054771 + ... + 1057138.

Almost surely, 2^2500500256 is an apocalyptic number.

It is an amenable number.

2500500256 is an abundant number, since it is smaller than the sum of its proper divisors (2555412284).

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

2500500256 is a wasteful number, since it uses less digits than its factorization.

2500500256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111956 (or 2111948 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2500500256 is about 50005.0023097690. The cubic root of 2500500256 is about 1357.2993291732.

The spelling of 2500500256 in words is "two billion, five hundred million, five hundred thousand, two hundred fifty-six".