22255911 has 16 divisors (see below), whose sum is σ = 33514720. Its totient is φ = 14592960.

The previous prime is 22255903. The next prime is 22255939. The reversal of 22255911 is 11955222.

It is not a de Polignac number, because 22255911 - 2³ = 22255903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255951) 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 in 15 ways as a sum of consecutive naturals, for example, 5110 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (2094670).

Almost surely, 2^22255911 is an apocalyptic number.

22255911 is a deficient number, since it is larger than the sum of its proper divisors (11258809).

22255911 is a wasteful number, since it uses less digits than its factorization.

22255911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13583 (or 13577 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 22255911 is about 4717.6170891669. The cubic root of 22255911 is about 281.2862211128.

The spelling of 22255911 in words is "twenty-two million, two hundred fifty-five thousand, nine hundred eleven".