25025000025 has 24 divisors (see below), whose sum is σ = 43808472864. Its totient is φ = 12561568000.

The previous prime is 25024999999. The next prime is 25025000047. The reversal of 25025000025 is 52000052052.

It is not a de Polignac number, because 25025000025 - 2⁷ = 25024999897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25024999965 and 25025000010.

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 23 ways as a sum of consecutive naturals, for example, 9812451 + ... + 9815000.

It is an arithmetic number, because the mean of its divisors is an integer number (1825353036).

Almost surely, 2^25025000025 is an apocalyptic number.

25025000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25025000025 is a deficient number, since it is larger than the sum of its proper divisors (18783472839).

25025000025 is a wasteful number, since it uses less digits than its factorization.

25025000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19627481 (or 19627476 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

Adding to 25025000025 its reverse (52000052052), we get a palindrome (77025052077).

The spelling of 25025000025 in words is "twenty-five billion, twenty-five million, twenty-five", and thus it is an aban number and an uban number.