25116117613 has 24 divisors (see below), whose sum is σ = 27000890880. Its totient is φ = 23353155360.

The previous prime is 25116117569. The next prime is 25116117673. The reversal of 25116117613 is 31671161152.

It is not a de Polignac number, because 25116117613 - 2²⁹ = 24579246701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25116117673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13365808 + ... + 13367686.

It is an arithmetic number, because the mean of its divisors is an integer number (1125037120).

Almost surely, 2^25116117613 is an apocalyptic number.

It is an amenable number.

25116117613 is a deficient number, since it is larger than the sum of its proper divisors (1884773267).

25116117613 is a wasteful number, since it uses less digits than its factorization.

25116117613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585 (or 2566 counting only the distinct ones).

The product of its digits is 7560, while the sum is 34.

Adding to 25116117613 its reverse (31671161152), we get a palindrome (56787278765).

The spelling of 25116117613 in words is "twenty-five billion, one hundred sixteen million, one hundred seventeen thousand, six hundred thirteen".