13531523325 has 24 divisors (see below), whose sum is σ = 22383591168. Its totient is φ = 7213111680.

The previous prime is 13531523293. The next prime is 13531523329. The reversal of 13531523325 is 52332513531.

It is not a de Polignac number, because 13531523325 - 2⁵ = 13531523293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531523329) 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, 104212 + ... + 194738.

It is an arithmetic number, because the mean of its divisors is an integer number (932649632).

Almost surely, 2^13531523325 is an apocalyptic number.

13531523325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531523325 is a deficient number, since it is larger than the sum of its proper divisors (8852067843).

13531523325 is a wasteful number, since it uses less digits than its factorization.

13531523325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92533 (or 92528 counting only the distinct ones).

The product of its digits is 40500, while the sum is 33.

The spelling of 13531523325 in words is "thirteen billion, five hundred thirty-one million, five hundred twenty-three thousand, three hundred twenty-five".