22054564 has 24 divisors (see below), whose sum is σ = 44330048. Its totient is φ = 9404640.

The previous prime is 22054537. The next prime is 22054567. The reversal of 22054564 is 46545022.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (22054567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4042 + ... + 7774.

Almost surely, 2^22054564 is an apocalyptic number.

It is an amenable number.

22054564 is an abundant number, since it is smaller than the sum of its proper divisors (22275484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22054564 is a wasteful number, since it uses less digits than its factorization.

22054564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 22054564 is about 4696.2286997121. The cubic root of 22054564 is about 280.4353940492.

Adding to 22054564 its reverse (46545022), we get a palindrome (68599586).

The spelling of 22054564 in words is "twenty-two million, fifty-four thousand, five hundred sixty-four".