22655983 has 18 divisors (see below), whose sum is σ = 27013896. Its totient is φ = 18943848.

The previous prime is 22655981. The next prime is 22656001. The reversal of 22655983 is 38955622.

It is not a de Polignac number, because 22655983 - 2¹ = 22655981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22655981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 219910 + ... + 220012.

It is an arithmetic number, because the mean of its divisors is an integer number (1500772).

Almost surely, 2^22655983 is an apocalyptic number.

22655983 is a deficient number, since it is larger than the sum of its proper divisors (4357913).

22655983 is an equidigital number, since it uses as much as digits as its factorization.

22655983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 177 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 22655983 is about 4759.8301440283. The cubic root of 22655983 is about 282.9616874304.

The spelling of 22655983 in words is "twenty-two million, six hundred fifty-five thousand, nine hundred eighty-three".