25000025013 has 12 divisors (see below), whose sum is σ = 36238752160. Its totient is φ = 16607788776.

The previous prime is 25000024997. The next prime is 25000025023. The reversal of 25000025013 is 31052000052.

It is a happy number.

It is not a de Polignac number, because 25000025013 - 2⁴ = 25000024997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000025023) by changing a digit.

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, 4905193 + ... + 4910286.

Almost surely, 2^25000025013 is an apocalyptic number.

It is an amenable number.

25000025013 is a deficient number, since it is larger than the sum of its proper divisors (11238727147).

25000025013 is a wasteful number, since it uses less digits than its factorization.

25000025013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815768 (or 9815765 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

Adding to 25000025013 its reverse (31052000052), we get a palindrome (56052025065).

The spelling of 25000025013 in words is "twenty-five billion, twenty-five thousand, thirteen".