22553221524 has 12 divisors (see below), whose sum is σ = 52624183584. Its totient is φ = 7517740504.

The previous prime is 22553221459. The next prime is 22553221541. The reversal of 22553221524 is 42512235522.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×22553221524² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939717552 + ... + 939717575.

It is an arithmetic number, because the mean of its divisors is an integer number (4385348632).

Almost surely, 2^22553221524 is an apocalyptic number.

It is an amenable number.

22553221524 is an abundant number, since it is smaller than the sum of its proper divisors (30070962060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22553221524 is a wasteful number, since it uses less digits than its factorization.

22553221524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879435134 (or 1879435132 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The spelling of 22553221524 in words is "twenty-two billion, five hundred fifty-three million, two hundred twenty-one thousand, five hundred twenty-four".