22655455 has 4 divisors (see below), whose sum is σ = 27186552. Its totient is φ = 18124360.

The previous prime is 22655443. The next prime is 22655489. The reversal of 22655455 is 55455622.

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

It is a de Polignac number, because none of the positive numbers 2^k-22655455 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22655455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265541 + ... + 2265550.

It is an arithmetic number, because the mean of its divisors is an integer number (6796638).

Almost surely, 2^22655455 is an apocalyptic number.

22655455 is a deficient number, since it is larger than the sum of its proper divisors (4531097).

22655455 is an equidigital number, since it uses as much as digits as its factorization.

22655455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531096.

The product of its digits is 60000, while the sum is 34.

The square root of 22655455 is about 4759.7746795410. The cubic root of 22655455 is about 282.9594892630.

The spelling of 22655455 in words is "twenty-two million, six hundred fifty-five thousand, four hundred fifty-five".