225122521613 has 16 divisors (see below), whose sum is σ = 246093811200. Its totient is φ = 204235777200.

The previous prime is 225122521609. The next prime is 225122521639. The reversal of 225122521613 is 316125221522.

It is a cyclic number.

It is not a de Polignac number, because 225122521613 - 2² = 225122521609 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 225122521613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225122527613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22997306 + ... + 23007092.

It is an arithmetic number, because the mean of its divisors is an integer number (15380863200).

Almost surely, 2^225122521613 is an apocalyptic number.

It is an amenable number.

225122521613 is a deficient number, since it is larger than the sum of its proper divisors (20971289587).

225122521613 is a wasteful number, since it uses less digits than its factorization.

225122521613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13888.

The product of its digits is 14400, while the sum is 32.

The spelling of 225122521613 in words is "two hundred twenty-five billion, one hundred twenty-two million, five hundred twenty-one thousand, six hundred thirteen".