25013753988 has 24 divisors (see below), whose sum is σ = 59354672160. Its totient is φ = 8196597120.

The previous prime is 25013753953. The next prime is 25013753993. The reversal of 25013753988 is 88935731052.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25013753988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17664373 + ... + 17665788.

It is an arithmetic number, because the mean of its divisors is an integer number (2473111340).

Almost surely, 2^25013753988 is an apocalyptic number.

It is an amenable number.

25013753988 is an abundant number, since it is smaller than the sum of its proper divisors (34340918172).

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

25013753988 is a wasteful number, since it uses less digits than its factorization.

25013753988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35330227 (or 35330225 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 25013753988 in words is "twenty-five billion, thirteen million, seven hundred fifty-three thousand, nine hundred eighty-eight".