13531125525 has 12 divisors (see below), whose sum is σ = 22371460992. Its totient is φ = 7216600240.

The previous prime is 13531125523. The next prime is 13531125533. The reversal of 13531125525 is 52552113531.

It is a happy number.

It is not a de Polignac number, because 13531125525 - 2¹ = 13531125523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531125523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90207429 + ... + 90207578.

It is an arithmetic number, because the mean of its divisors is an integer number (1864288416).

Almost surely, 2^13531125525 is an apocalyptic number.

13531125525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531125525 is a deficient number, since it is larger than the sum of its proper divisors (8840335467).

13531125525 is a wasteful number, since it uses less digits than its factorization.

13531125525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180415020 (or 180415015 counting only the distinct ones).

The product of its digits is 22500, while the sum is 33.

The spelling of 13531125525 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-five thousand, five hundred twenty-five".