25082808025 has 12 divisors (see below), whose sum is σ = 33930198864. Its totient is φ = 18242042000.

The previous prime is 25082808019. The next prime is 25082808041. The reversal of 25082808025 is 52080828052.

It is a de Polignac number, because none of the positive numbers 2^k-25082808025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45604831 + ... + 45605380.

It is an arithmetic number, because the mean of its divisors is an integer number (2827516572).

Almost surely, 2^25082808025 is an apocalyptic number.

25082808025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25082808025 is a deficient number, since it is larger than the sum of its proper divisors (8847390839).

25082808025 is a wasteful number, since it uses less digits than its factorization.

25082808025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91210232 (or 91210227 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 25082808025 in words is "twenty-five billion, eighty-two million, eight hundred eight thousand, twenty-five".