25960481631 has 24 divisors (see below), whose sum is σ = 43767220224. Its totient is φ = 14518930320.

The previous prime is 25960481629. The next prime is 25960481671. The reversal of 25960481631 is 13618406952.

25960481631 is a `hidden beast` number, since 2 + 5 + 9 + 6 + 0 + 4 + 8 + 1 + 631 = 666.

It is not a de Polignac number, because 25960481631 - 2¹ = 25960481629 is a prime.

It is a super-2 number, since 2×25960481631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25960481611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4380775 + ... + 4386696.

It is an arithmetic number, because the mean of its divisors is an integer number (1823634176).

Almost surely, 2^25960481631 is an apocalyptic number.

25960481631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25960481631 is a deficient number, since it is larger than the sum of its proper divisors (17806738593).

25960481631 is a wasteful number, since it uses less digits than its factorization.

25960481631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767531 (or 8767528 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 25960481631 in words is "twenty-five billion, nine hundred sixty million, four hundred eighty-one thousand, six hundred thirty-one".