22356529441 has 3 divisors (see below), whose sum is σ = 22356678963. Its totient is φ = 22356379920.

The previous prime is 22356529423. The next prime is 22356529453. The reversal of 22356529441 is 14492565322.

The square root of 22356529441 is 149521.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 21588131041 + 768398400 = 146929^2 + 27720^2 .

It is not a de Polignac number, because 22356529441 - 2²³ = 22348140833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22356529411) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74761 + ... + 224281.

It is an arithmetic number, because the mean of its divisors is an integer number (7452226321).

Almost surely, 2^22356529441 is an apocalyptic number.

22356529441 is the 149521-st square number.

22356529441 is the 74761-st centered octagonal number.

It is an amenable number.

22356529441 is a deficient number, since it is larger than the sum of its proper divisors (149522).

22356529441 is an frugal number, since it uses more digits than its factorization.

22356529441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299042 (or 149521 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 22356529441 in words is "twenty-two billion, three hundred fifty-six million, five hundred twenty-nine thousand, four hundred forty-one".