22768225 has 12 divisors (see below), whose sum is σ = 28291840. Its totient is φ = 18176400.

The previous prime is 22768223. The next prime is 22768231. The reversal of 22768225 is 52286722.

It is a happy number.

It is not a de Polignac number, because 22768225 - 2¹ = 22768223 is a prime.

Its product of digits (26880) is a multiple of the sum of its prime factors (1920).

It is not an unprimeable number, because it can be changed into a prime (22768223) 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 11 ways as a sum of consecutive naturals, for example, 22480 + ... + 23470.

Almost surely, 2^22768225 is an apocalyptic number.

22768225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22768225 is a deficient number, since it is larger than the sum of its proper divisors (5523615).

22768225 is an equidigital number, since it uses as much as digits as its factorization.

22768225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1915 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 22768225 is about 4771.6061237282. The cubic root of 22768225 is about 283.4281996825.

It can be divided in two parts, 2276 and 8225, that added together give a palindrome (10501).

The spelling of 22768225 in words is "twenty-two million, seven hundred sixty-eight thousand, two hundred twenty-five".