13531122525 has 24 divisors (see below), whose sum is σ = 23344130880. Its totient is φ = 6902832640.

The previous prime is 13531122509. The next prime is 13531122529. The reversal of 13531122525 is 52522113531.

It is not a de Polignac number, because 13531122525 - 2⁴ = 13531122509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13531122492 and 13531122501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531122529) 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, 3920340 + ... + 3923789.

It is an arithmetic number, because the mean of its divisors is an integer number (972672120).

Almost surely, 2^13531122525 is an apocalyptic number.

13531122525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531122525 is a deficient number, since it is larger than the sum of its proper divisors (9813008355).

13531122525 is a wasteful number, since it uses less digits than its factorization.

13531122525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844165 (or 7844160 counting only the distinct ones).

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

The spelling of 13531122525 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-two thousand, five hundred twenty-five".