22802225 has 6 divisors (see below), whose sum is σ = 28274790. Its totient is φ = 18241760.

The previous prime is 22802201. The next prime is 22802231. The reversal of 22802225 is 52220822.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8025889 + 14776336 = 2833^2 + 3844^2 .

It is not a de Polignac number, because 22802225 - 2⁶ = 22802161 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22802225.

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, 456020 + ... + 456069.

It is an arithmetic number, because the mean of its divisors is an integer number (4712465).

Almost surely, 2^22802225 is an apocalyptic number.

22802225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22802225 is a deficient number, since it is larger than the sum of its proper divisors (5472565).

22802225 is an equidigital number, since it uses as much as digits as its factorization.

22802225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912099 (or 912094 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22802225 is about 4775.1675363279. The cubic root of 22802225 is about 283.5692114943.

The spelling of 22802225 in words is "twenty-two million, eight hundred two thousand, two hundred twenty-five".