13525064631 has 96 divisors (see below), whose sum is σ = 22374817920. Its totient is φ = 7814016000.

The previous prime is 13525064627. The next prime is 13525064639. The reversal of 13525064631 is 13646052531.

13525064631 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 5 + 0 + 646 + 3 + 1 = 666.

13525064631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13525064631 - 2² = 13525064627 is a prime.

It is a super-2 number, since 2×13525064631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525064639) 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 95 ways as a sum of consecutive naturals, for example, 20903950 + ... + 20904596.

It is an arithmetic number, because the mean of its divisors is an integer number (233071020).

Almost surely, 2^13525064631 is an apocalyptic number.

13525064631 is a deficient number, since it is larger than the sum of its proper divisors (8849753289).

13525064631 is a wasteful number, since it uses less digits than its factorization.

13525064631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 13525064631 in words is "thirteen billion, five hundred twenty-five million, sixty-four thousand, six hundred thirty-one".