13512232505 has 16 divisors (see below), whose sum is σ = 16259443200. Its totient is φ = 10779985920.

The previous prime is 13512232483. The next prime is 13512232541. The reversal of 13512232505 is 50523221531.

It is not a de Polignac number, because 13512232505 - 2²⁶ = 13445123641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4021016 + ... + 4024374.

It is an arithmetic number, because the mean of its divisors is an integer number (1016215200).

Almost surely, 2^13512232505 is an apocalyptic number.

It is an amenable number.

13512232505 is a deficient number, since it is larger than the sum of its proper divisors (2747210695).

13512232505 is a wasteful number, since it uses less digits than its factorization.

13512232505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 13512232505 in words is "thirteen billion, five hundred twelve million, two hundred thirty-two thousand, five hundred five".