25500000002500 has 60 divisors (see below), whose sum is σ = 55769290714368. Its totient is φ = 10198922500000.

The previous prime is 25500000002497. The next prime is 25500000002537. The reversal of 25500000002500 is 520000000552.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23343525 + ... + 24411475.

Almost surely, 2^{25500000002500} is an apocalyptic number.

25500000002500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25500000002500 is an abundant number, since it is smaller than the sum of its proper divisors (30269290711868).

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

25500000002500 is a wasteful number, since it uses less digits than its factorization.

25500000002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077526 (or 1077509 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The spelling of 25500000002500 in words is "twenty-five trillion, five hundred billion, two thousand, five hundred".