22536406252 has 12 divisors (see below), whose sum is σ = 41758635240. Its totient is φ = 10605367616.

The previous prime is 22536406213. The next prime is 22536406267. The reversal of 22536406252 is 25260463522.

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, 165708802 + ... + 165708937.

It is an arithmetic number, because the mean of its divisors is an integer number (3479886270).

Almost surely, 2^22536406252 is an apocalyptic number.

It is an amenable number.

22536406252 is a deficient number, since it is larger than the sum of its proper divisors (19222228988).

22536406252 is a wasteful number, since it uses less digits than its factorization.

22536406252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331417760 (or 331417758 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 22536406252 its reverse (25260463522), we get a palindrome (47796869774).

The spelling of 22536406252 in words is "twenty-two billion, five hundred thirty-six million, four hundred six thousand, two hundred fifty-two".