22656554 has 4 divisors (see below), whose sum is σ = 33984834. Its totient is φ = 11328276.

The previous prime is 22656553. The next prime is 22656589. The reversal of 22656554 is 45565622.

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

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 9443329 = 3635^2 + 3073^2 .

It is not an unprimeable number, because it can be changed into a prime (22656551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5664137 + ... + 5664140.

Almost surely, 2^22656554 is an apocalyptic number.

22656554 is a deficient number, since it is larger than the sum of its proper divisors (11328280).

22656554 is a wasteful number, since it uses less digits than its factorization.

22656554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11328279.

The product of its digits is 72000, while the sum is 35.

The square root of 22656554 is about 4759.8901247823. The cubic root of 22656554 is about 282.9640645769.

The spelling of 22656554 in words is "twenty-two million, six hundred fifty-six thousand, five hundred fifty-four".