22504432261 has 16 divisors (see below), whose sum is σ = 24080917248. Its totient is φ = 20956320000.

The previous prime is 22504432243. The next prime is 22504432331. The reversal of 22504432261 is 16223440522.

It is a cyclic number.

It is not a de Polignac number, because 22504432261 - 2²⁵ = 22470877829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22504432241) 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, 3057736 + ... + 3065086.

It is an arithmetic number, because the mean of its divisors is an integer number (1505057328).

Almost surely, 2^22504432261 is an apocalyptic number.

It is an amenable number.

22504432261 is a deficient number, since it is larger than the sum of its proper divisors (1576484987).

22504432261 is a wasteful number, since it uses less digits than its factorization.

22504432261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 22504432261 its reverse (16223440522), we get a palindrome (38727872783).

The spelling of 22504432261 in words is "twenty-two billion, five hundred four million, four hundred thirty-two thousand, two hundred sixty-one".