13222505523 has 4 divisors (see below), whose sum is σ = 17630007368. Its totient is φ = 8815003680.

The previous prime is 13222505467. The next prime is 13222505537. The reversal of 13222505523 is 32550522231.

13222505523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13222505523 - 2⁹ = 13222505011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222505563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203750918 + ... + 2203750923.

It is an arithmetic number, because the mean of its divisors is an integer number (4407501842).

Almost surely, 2^13222505523 is an apocalyptic number.

13222505523 is a deficient number, since it is larger than the sum of its proper divisors (4407501845).

13222505523 is an equidigital number, since it uses as much as digits as its factorization.

13222505523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407501844.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 13222505523 in words is "thirteen billion, two hundred twenty-two million, five hundred five thousand, five hundred twenty-three".