22502645553 has 4 divisors (see below), whose sum is σ = 30003527408. Its totient is φ = 15001763700.

The previous prime is 22502645551. The next prime is 22502645567. The reversal of 22502645553 is 35554620522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22502645553 - 2¹ = 22502645551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22502645551) 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, 3750440923 + ... + 3750440928.

It is an arithmetic number, because the mean of its divisors is an integer number (7500881852).

Almost surely, 2^22502645553 is an apocalyptic number.

It is an amenable number.

22502645553 is a deficient number, since it is larger than the sum of its proper divisors (7500881855).

22502645553 is an equidigital number, since it uses as much as digits as its factorization.

22502645553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500881854.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 22502645553 in words is "twenty-two billion, five hundred two million, six hundred forty-five thousand, five hundred fifty-three".