25115542413 has 24 divisors (see below), whose sum is σ = 36290568960. Its totient is φ = 15443326080.

The previous prime is 25115542393. The next prime is 25115542511. The reversal of 25115542413 is 31424551152.

It is not a de Polignac number, because 25115542413 - 2⁸ = 25115542157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115544413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634308 + ... + 672738.

It is an arithmetic number, because the mean of its divisors is an integer number (1512107040).

Almost surely, 2^25115542413 is an apocalyptic number.

It is an amenable number.

25115542413 is a deficient number, since it is larger than the sum of its proper divisors (11175026547).

25115542413 is a wasteful number, since it uses less digits than its factorization.

25115542413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39749 (or 39736 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The spelling of 25115542413 in words is "twenty-five billion, one hundred fifteen million, five hundred forty-two thousand, four hundred thirteen".