25516042713 has 48 divisors (see below), whose sum is σ = 46251354240. Its totient is φ = 13722898176.

The previous prime is 25516042709. The next prime is 25516042733. The reversal of 25516042713 is 31724061552.

25516042713 is a `hidden beast` number, since 2 + 551 + 60 + 42 + 7 + 1 + 3 = 666.

It is not a de Polignac number, because 25516042713 - 2² = 25516042709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25516042733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 412278 + ... + 470111.

It is an arithmetic number, because the mean of its divisors is an integer number (963569880).

Almost surely, 2^25516042713 is an apocalyptic number.

It is an amenable number.

25516042713 is a deficient number, since it is larger than the sum of its proper divisors (20735311527).

25516042713 is an equidigital number, since it uses as much as digits as its factorization.

25516042713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882428 (or 882416 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 25516042713 in words is "twenty-five billion, five hundred sixteen million, forty-two thousand, seven hundred thirteen".