22276225 has 6 divisors (see below), whose sum is σ = 27622550. Its totient is φ = 17820960.

The previous prime is 22276207. The next prime is 22276229. The reversal of 22276225 is 52267222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3301489 + 18974736 = 1817^2 + 4356^2 .

It is not a de Polignac number, because 22276225 - 2⁷ = 22276097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22276193 and 22276202.

It is not an unprimeable number, because it can be changed into a prime (22276229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445500 + ... + 445549.

Almost surely, 2^22276225 is an apocalyptic number.

22276225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22276225 is a deficient number, since it is larger than the sum of its proper divisors (5346325).

22276225 is an equidigital number, since it uses as much as digits as its factorization.

22276225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891059 (or 891054 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 22276225 is about 4719.7695918339. The cubic root of 22276225 is about 281.3717760722.

The spelling of 22276225 in words is "twenty-two million, two hundred seventy-six thousand, two hundred twenty-five".