13531140525 has 72 divisors (see below), whose sum is σ = 26118578304. Its totient is φ = 6163180800.

The previous prime is 13531140517. The next prime is 13531140583. The reversal of 13531140525 is 52504113531.

It is not a de Polignac number, because 13531140525 - 2³ = 13531140517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13531140492 and 13531140501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1026124 + ... + 1039226.

It is an arithmetic number, because the mean of its divisors is an integer number (362758032).

Almost surely, 2^13531140525 is an apocalyptic number.

13531140525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531140525 is a deficient number, since it is larger than the sum of its proper divisors (12587437779).

13531140525 is a wasteful number, since it uses less digits than its factorization.

13531140525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13411 (or 13399 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 13531140525 in words is "thirteen billion, five hundred thirty-one million, one hundred forty thousand, five hundred twenty-five".