25317113115 has 16 divisors (see below), whose sum is σ = 46294149888. Its totient is φ = 11573537376.

The previous prime is 25317113113. The next prime is 25317113123. The reversal of 25317113115 is 51131171352.

It is not a de Polignac number, because 25317113115 - 2¹ = 25317113113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25317113113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120557577 + ... + 120557786.

It is an arithmetic number, because the mean of its divisors is an integer number (2893384368).

Almost surely, 2^25317113115 is an apocalyptic number.

25317113115 is a deficient number, since it is larger than the sum of its proper divisors (20977036773).

25317113115 is a wasteful number, since it uses less digits than its factorization.

25317113115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241115378.

The product of its digits is 3150, while the sum is 30.

Adding to 25317113115 its reverse (51131171352), we get a palindrome (76448284467).

The spelling of 25317113115 in words is "twenty-five billion, three hundred seventeen million, one hundred thirteen thousand, one hundred fifteen".