13513522501 has 4 divisors (see below), whose sum is σ = 13526236192. Its totient is φ = 13500808812.

The previous prime is 13513522499. The next prime is 13513522523. The reversal of 13513522501 is 10522531531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13513522501 - 2¹ = 13513522499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13513522501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513522901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6355251 + ... + 6357376.

It is an arithmetic number, because the mean of its divisors is an integer number (3381559048).

Almost surely, 2^13513522501 is an apocalyptic number.

It is an amenable number.

13513522501 is a deficient number, since it is larger than the sum of its proper divisors (12713691).

13513522501 is a wasteful number, since it uses less digits than its factorization.

13513522501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713690.

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

The spelling of 13513522501 in words is "thirteen billion, five hundred thirteen million, five hundred twenty-two thousand, five hundred one".