22555505563 has 8 divisors (see below), whose sum is σ = 23083315200. Its totient is φ = 22027844328.

The previous prime is 22555505561. The next prime is 22555505597. The reversal of 22555505563 is 36550555522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22555505563 - 2¹ = 22555505561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22555505561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307398 + ... + 373636.

It is an arithmetic number, because the mean of its divisors is an integer number (2885414400).

Almost surely, 2^22555505563 is an apocalyptic number.

22555505563 is a deficient number, since it is larger than the sum of its proper divisors (527809637).

22555505563 is an equidigital number, since it uses as much as digits as its factorization.

22555505563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74201.

The product of its (nonzero) digits is 1125000, while the sum is 43.

The spelling of 22555505563 in words is "twenty-two billion, five hundred fifty-five million, five hundred five thousand, five hundred sixty-three".