22055623 has 4 divisors (see below), whose sum is σ = 22103928. Its totient is φ = 22007320.

The previous prime is 22055617. The next prime is 22055629. The reversal of 22055623 is 32655022.

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

It is an interprime number because it is at equal distance from previous prime (22055617) and next prime (22055629).

It is a cyclic number.

It is not a de Polignac number, because 22055623 - 2⁵ = 22055591 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 (22055629) 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 3 ways as a sum of consecutive naturals, for example, 23461 + ... + 24382.

It is an arithmetic number, because the mean of its divisors is an integer number (5525982).

Almost surely, 2^22055623 is an apocalyptic number.

22055623 is a deficient number, since it is larger than the sum of its proper divisors (48305).

22055623 is an equidigital number, since it uses as much as digits as its factorization.

22055623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48304.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 22055623 is about 4696.3414484043. The cubic root of 22055623 is about 280.4398825582.

The spelling of 22055623 in words is "twenty-two million, fifty-five thousand, six hundred twenty-three".