23222255 has 32 divisors (see below), whose sum is σ = 34836480. Its totient is φ = 14492160.

The previous prime is 23222233. The next prime is 23222257. The reversal of 23222255 is 55222232.

It is a happy number.

It is not a de Polignac number, because 23222255 - 2⁶ = 23222191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23222255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17816 + ... + 19074.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^23222255 is an apocalyptic number.

23222255 is a deficient number, since it is larger than the sum of its proper divisors (11614225).

23222255 is a wasteful number, since it uses less digits than its factorization.

23222255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319.

The product of its digits is 2400, while the sum is 23.

The square root of 23222255 is about 4818.9474991952. The cubic root of 23222255 is about 285.2997973816.

Subtracting from 23222255 its sum of digits (23), we obtain a palindrome (23222232).

Adding to 23222255 its reverse (55222232), we get a palindrome (78444487).

The spelling of 23222255 in words is "twenty-three million, two hundred twenty-two thousand, two hundred fifty-five".