25376502625 has 8 divisors (see below), whose sum is σ = 31669875432. Its totient is φ = 20301202000.

The previous prime is 25376502617. The next prime is 25376502637. The reversal of 25376502625 is 52620567352.

It can be written as a sum of positive squares in 4 ways, for example, as 227617569 + 25148885056 = 15087^2 + 158584^2 .

It is not a de Polignac number, because 25376502625 - 2³ = 25376502617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101505886 + ... + 101506135.

It is an arithmetic number, because the mean of its divisors is an integer number (3958734429).

Almost surely, 2^25376502625 is an apocalyptic number.

25376502625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25376502625 is a deficient number, since it is larger than the sum of its proper divisors (6293372807).

25376502625 is an equidigital number, since it uses as much as digits as its factorization.

25376502625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203012036 (or 203012026 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 25376502625 in words is "twenty-five billion, three hundred seventy-six million, five hundred two thousand, six hundred twenty-five".