13531201525 has 24 divisors (see below), whose sum is σ = 17064643904. Its totient is φ = 10641456000.

The previous prime is 13531201417. The next prime is 13531201549. The reversal of 13531201525 is 52510213531.

It is a de Polignac number, because none of the positive numbers 2^k-13531201525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13531201493 and 13531201502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548200 + ... + 572350.

Almost surely, 2^13531201525 is an apocalyptic number.

It is an amenable number.

13531201525 is a deficient number, since it is larger than the sum of its proper divisors (3533442379).

13531201525 is a wasteful number, since it uses less digits than its factorization.

13531201525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24541 (or 24536 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 13531201525 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, five hundred twenty-five".