22543105232 has 20 divisors (see below), whose sum is σ = 43688815716. Its totient is φ = 11268572160.

The previous prime is 22543105231. The next prime is 22543105261. The reversal of 22543105232 is 23250134522.

It can be written as a sum of positive squares in 2 ways, for example, as 9067610176 + 13475495056 = 95224^2 + 116084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22543105195 and 22543105204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22543105231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123233 + ... + 245504.

Almost surely, 2^22543105232 is an apocalyptic number.

It is an amenable number.

22543105232 is a deficient number, since it is larger than the sum of its proper divisors (21145710484).

22543105232 is a wasteful number, since it uses less digits than its factorization.

22543105232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372566 (or 372560 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22543105232 its reverse (23250134522), we get a palindrome (45793239754).

The spelling of 22543105232 in words is "twenty-two billion, five hundred forty-three million, one hundred five thousand, two hundred thirty-two".