25315163264131 has 16 divisors (see below), whose sum is σ = 27477198302400. Its totient is φ = 23184462607488.

The previous prime is 25315163264089. The next prime is 25315163264137. The reversal of 25315163264131 is 13146236151352.

It is a de Polignac number, because none of the positive numbers 2^k-25315163264131 is a prime.

It is a super-2 number, since 2×25315163264131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25315163264137) 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 15 ways as a sum of consecutive naturals, for example, 12847836 + ... + 14686633.

It is an arithmetic number, because the mean of its divisors is an integer number (1717324893900).

Almost surely, 2^{25315163264131} is an apocalyptic number.

25315163264131 is a deficient number, since it is larger than the sum of its proper divisors (2162035038269).

25315163264131 is a wasteful number, since it uses less digits than its factorization.

25315163264131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27535038.

The product of its digits is 388800, while the sum is 43.

The spelling of 25315163264131 in words is "twenty-five trillion, three hundred fifteen billion, one hundred sixty-three million, two hundred sixty-four thousand, one hundred thirty-one".