22556233507 has 2 divisors, whose sum is σ = 22556233508. Its totient is φ = 22556233506.

The previous prime is 22556233481. The next prime is 22556233519. The reversal of 22556233507 is 70533265522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22556233507 - 2¹¹ = 22556231459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22556233507.

It is not a weakly prime, because it can be changed into another prime (22556233207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11278116753 + 11278116754.

It is an arithmetic number, because the mean of its divisors is an integer number (11278116754).

Almost surely, 2^22556233507 is an apocalyptic number.

22556233507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22556233507 is an equidigital number, since it uses as much as digits as its factorization.

22556233507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 40.

The spelling of 22556233507 in words is "twenty-two billion, five hundred fifty-six million, two hundred thirty-three thousand, five hundred seven".