25030000025 has 12 divisors (see below), whose sum is σ = 31311869052. Its totient is φ = 19846794240.

The previous prime is 25030000007. The next prime is 25030000057. The reversal of 25030000025 is 52000003052.

It can be written as a sum of positive squares in 6 ways, for example, as 2660909056 + 22369090969 = 51584^2 + 149563^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25030000025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25029999958 and 25030000012.

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, 4427264 + ... + 4432913.

It is an arithmetic number, because the mean of its divisors is an integer number (2609322421).

Almost surely, 2^25030000025 is an apocalyptic number.

25030000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25030000025 is a deficient number, since it is larger than the sum of its proper divisors (6281869027).

25030000025 is a wasteful number, since it uses less digits than its factorization.

25030000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860300 (or 8860295 counting only the distinct ones).

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

Adding to 25030000025 its reverse (52000003052), we get a palindrome (77030003077).

The spelling of 25030000025 in words is "twenty-five billion, thirty million, twenty-five", and thus it is an aban number and an uban number.