25002500020 has 48 divisors (see below), whose sum is σ = 53340819840. Its totient is φ = 9842765696.

The previous prime is 25002499997. The next prime is 25002500051. The reversal of 25002500020 is 2000520052.

It is a junction number, because it is equal to n+sod(n) for n = 25002499967 and 25002500003.

It is a congruent number.

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, 407946 + ... + 465214.

It is an arithmetic number, because the mean of its divisors is an integer number (1111267080).

Almost surely, 2^25002500020 is an apocalyptic number.

25002500020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25002500020 is an abundant number, since it is smaller than the sum of its proper divisors (28338319820).

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

25002500020 is a wasteful number, since it uses less digits than its factorization.

25002500020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57624 (or 57622 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The spelling of 25002500020 in words is "twenty-five billion, two million, five hundred thousand, twenty".