25000112515 has 16 divisors (see below), whose sum is σ = 34301509632. Its totient is φ = 17135113824.

The previous prime is 25000112503. The next prime is 25000112521. The reversal of 25000112515 is 51521100052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25000112515 - 2⁷ = 25000112387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84579 + ... + 239068.

It is an arithmetic number, because the mean of its divisors is an integer number (2143844352).

Almost surely, 2^25000112515 is an apocalyptic number.

25000112515 is a deficient number, since it is larger than the sum of its proper divisors (9301397117).

25000112515 is a wasteful number, since it uses less digits than its factorization.

25000112515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325866.

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 25000112515 its reverse (51521100052), we get a palindrome (76521212567).

The spelling of 25000112515 in words is "twenty-five billion, one hundred twelve thousand, five hundred fifteen".