25002775250 has 32 divisors (see below), whose sum is σ = 47503812096. Its totient is φ = 9851833200.

The previous prime is 25002775249. The next prime is 25002775261. The reversal of 25002775250 is 5257720052.

It is a self number, because there is not a number n which added to its sum of digits gives 25002775250.

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, 729602 + ... + 763101.

It is an arithmetic number, because the mean of its divisors is an integer number (1484494128).

Almost surely, 2^25002775250 is an apocalyptic number.

25002775250 is a deficient number, since it is larger than the sum of its proper divisors (22501036846).

25002775250 is a wasteful number, since it uses less digits than its factorization.

25002775250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492787 (or 1492777 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The spelling of 25002775250 in words is "twenty-five billion, two million, seven hundred seventy-five thousand, two hundred fifty".