25250275025 has 12 divisors (see below), whose sum is σ = 31312352652. Its totient is φ = 20198922240.

The previous prime is 25250275019. The next prime is 25250275033. The reversal of 25250275025 is 52057205252.

It can be written as a sum of positive squares in 6 ways, for example, as 2996796049 + 22253478976 = 54743^2 + 149176^2 .

It is not a de Polignac number, because 25250275025 - 2⁸ = 25250274769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628337 + ... + 667313.

It is an arithmetic number, because the mean of its divisors is an integer number (2609362721).

Almost surely, 2^25250275025 is an apocalyptic number.

25250275025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25250275025 is a deficient number, since it is larger than the sum of its proper divisors (6062077627).

25250275025 is a wasteful number, since it uses less digits than its factorization.

25250275025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64900 (or 64895 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

The spelling of 25250275025 in words is "twenty-five billion, two hundred fifty million, two hundred seventy-five thousand, twenty-five".