22265563 has 4 divisors (see below), whose sum is σ = 23575320. Its totient is φ = 20955808.

The previous prime is 22265561. The next prime is 22265567. The reversal of 22265563 is 36556222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22265563 - 2¹ = 22265561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22265561) 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 3 ways as a sum of consecutive naturals, for example, 654853 + ... + 654886.

It is an arithmetic number, because the mean of its divisors is an integer number (5893830).

Almost surely, 2^22265563 is an apocalyptic number.

22265563 is a deficient number, since it is larger than the sum of its proper divisors (1309757).

22265563 is a wasteful number, since it uses less digits than its factorization.

22265563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309756.

The product of its digits is 21600, while the sum is 31.

The square root of 22265563 is about 4718.6399523592. The cubic root of 22265563 is about 281.3268782102.

The spelling of 22265563 in words is "twenty-two million, two hundred sixty-five thousand, five hundred sixty-three".