22555663 has 8 divisors (see below), whose sum is σ = 25347168. Its totient is φ = 19915104.

The previous prime is 22555639. The next prime is 22555667. The reversal of 22555663 is 36655522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22555663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37420 + ... + 38017.

It is an arithmetic number, because the mean of its divisors is an integer number (3168396).

Almost surely, 2^22555663 is an apocalyptic number.

22555663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22555663 is a deficient number, since it is larger than the sum of its proper divisors (2791505).

22555663 is a wasteful number, since it uses less digits than its factorization.

22555663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75473.

The product of its digits is 54000, while the sum is 34.

The square root of 22555663 is about 4749.2802612606. The cubic root of 22555663 is about 282.5434208978.

The spelling of 22555663 in words is "twenty-two million, five hundred fifty-five thousand, six hundred sixty-three".