25013750025 has 24 divisors (see below), whose sum is σ = 45115710624. Its totient is φ = 12127878400.

The previous prime is 25013750011. The next prime is 25013750057. The reversal of 25013750025 is 52005731052.

It is not a de Polignac number, because 25013750025 - 2⁵ = 25013749993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25013749974 and 25013750001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15159024 + ... + 15160673.

It is an arithmetic number, because the mean of its divisors is an integer number (1879821276).

Almost surely, 2^25013750025 is an apocalyptic number.

25013750025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25013750025 is a deficient number, since it is larger than the sum of its proper divisors (20101960599).

25013750025 is a wasteful number, since it uses less digits than its factorization.

25013750025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30319721 (or 30319716 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The spelling of 25013750025 in words is "twenty-five billion, thirteen million, seven hundred fifty thousand, twenty-five".