25127693825 has 12 divisors (see below), whose sum is σ = 33555136188. Its totient is φ = 18555835200.

The previous prime is 25127693807. The next prime is 25127693881. The reversal of 25127693825 is 52839672152.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2236911616 + 22890782209 = 47296^2 + 151297^2 .

It is not a de Polignac number, because 25127693825 - 2³⁴ = 7947824641 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38657666 + ... + 38658315.

It is an arithmetic number, because the mean of its divisors is an integer number (2796261349).

Almost surely, 2^25127693825 is an apocalyptic number.

25127693825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25127693825 is a deficient number, since it is larger than the sum of its proper divisors (8427442363).

25127693825 is a wasteful number, since it uses less digits than its factorization.

25127693825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77316004 (or 77315999 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The spelling of 25127693825 in words is "twenty-five billion, one hundred twenty-seven million, six hundred ninety-three thousand, eight hundred twenty-five".