25002689988 has 48 divisors (see below), whose sum is σ = 61431552000. Its totient is φ = 7892830368.

The previous prime is 25002689977. The next prime is 25002690049. The reversal of 25002689988 is 88998620052.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 693553 + ... + 728711.

It is an arithmetic number, because the mean of its divisors is an integer number (1279824000).

Almost surely, 2^25002689988 is an apocalyptic number.

It is an amenable number.

25002689988 is an abundant number, since it is smaller than the sum of its proper divisors (36428862012).

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

25002689988 is a wasteful number, since it uses less digits than its factorization.

25002689988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38304 (or 38302 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 25002689988 in words is "twenty-five billion, two million, six hundred eighty-nine thousand, nine hundred eighty-eight".