22255775 has 6 divisors (see below), whose sum is σ = 27597192. Its totient is φ = 17804600.

The previous prime is 22255763. The next prime is 22255781. The reversal of 22255775 is 57755222.

It is not a de Polignac number, because 22255775 - 2¹⁴ = 22239391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445091 + ... + 445140.

It is an arithmetic number, because the mean of its divisors is an integer number (4599532).

Almost surely, 2^22255775 is an apocalyptic number.

22255775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22255775 is a deficient number, since it is larger than the sum of its proper divisors (5341417).

22255775 is an equidigital number, since it uses as much as digits as its factorization.

22255775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890241 (or 890236 counting only the distinct ones).

The product of its digits is 49000, while the sum is 35.

The square root of 22255775 is about 4717.6026750883. The cubic root of 22255775 is about 281.2856481563.

It can be divided in two parts, 2225 and 5775, that added together give a cube (8000 = 20³).

The spelling of 22255775 in words is "twenty-two million, two hundred fifty-five thousand, seven hundred seventy-five".