25300000025 has 12 divisors (see below), whose sum is σ = 31397815932. Its totient is φ = 20223344640.

The previous prime is 25300000013. The next prime is 25300000087. The reversal of 25300000025 is 52000000352.

It can be written as a sum of positive squares in 6 ways, for example, as 6548531929 + 18751468096 = 80923^2 + 136936^2 .

It is not a de Polignac number, because 25300000025 - 2³⁰ = 24226258201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25299999949 and 25300000012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385352 + ... + 446201.

It is an arithmetic number, because the mean of its divisors is an integer number (2616484661).

Almost surely, 2^25300000025 is an apocalyptic number.

25300000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25300000025 is a deficient number, since it is larger than the sum of its proper divisors (6097815907).

25300000025 is a wasteful number, since it uses less digits than its factorization.

25300000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832780 (or 832775 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

Adding to 25300000025 its reverse (52000000352), we get a palindrome (77300000377).

The spelling of 25300000025 in words is "twenty-five billion, three hundred million, twenty-five", and thus it is an aban number.