22355542553 has 4 divisors (see below), whose sum is σ = 23327522688. Its totient is φ = 21383562420.

The previous prime is 22355542549. The next prime is 22355542613. The reversal of 22355542553 is 35524555322.

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 a cyclic number.

It is not a de Polignac number, because 22355542553 - 2² = 22355542549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22355542553.

It is not an unprimeable number, because it can be changed into a prime (22355542513) 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, 485990033 + ... + 485990078.

It is an arithmetic number, because the mean of its divisors is an integer number (5831880672).

Almost surely, 2^22355542553 is an apocalyptic number.

22355542553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22355542553 is a deficient number, since it is larger than the sum of its proper divisors (971980135).

22355542553 is an equidigital number, since it uses as much as digits as its factorization.

22355542553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971980134.

The product of its digits is 900000, while the sum is 41.

The spelling of 22355542553 in words is "twenty-two billion, three hundred fifty-five million, five hundred forty-two thousand, five hundred fifty-three".