22244555 has 8 divisors (see below), whose sum is σ = 26732112. Its totient is φ = 17769888.

The previous prime is 22244549. The next prime is 22244561. The reversal of 22244555 is 55544222.

It is an interprime number because it is at equal distance from previous prime (22244549) and next prime (22244561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22244555 - 2⁴ = 22244539 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (3341514).

Almost surely, 2^22244555 is an apocalyptic number.

22244555 is a deficient number, since it is larger than the sum of its proper divisors (4487557).

22244555 is an equidigital number, since it uses as much as digits as its factorization.

22244555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445.

The product of its digits is 16000, while the sum is 29.

The square root of 22244555 is about 4716.4133618673. The cubic root of 22244555 is about 281.2383712064.

Adding to 22244555 its reverse (55544222), we get a palindrome (77788777).

The spelling of 22244555 in words is "twenty-two million, two hundred forty-four thousand, five hundred fifty-five".