222328825 has 6 divisors (see below), whose sum is σ = 275687774. Its totient is φ = 177863040.

The previous prime is 222328817. The next prime is 222328829. The reversal of 222328825 is 528823222.

It can be written as a sum of positive squares in 3 ways, for example, as 4116841 + 218211984 = 2029^2 + 14772^2 .

It is not a de Polignac number, because 222328825 - 2³ = 222328817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222328829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4446552 + ... + 4446601.

Almost surely, 2^222328825 is an apocalyptic number.

222328825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222328825 is a deficient number, since it is larger than the sum of its proper divisors (53358949).

222328825 is an equidigital number, since it uses as much as digits as its factorization.

222328825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893163 (or 8893158 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 222328825 is about 14910.6949871560. The cubic root of 222328825 is about 605.8037038454.

The spelling of 222328825 in words is "two hundred twenty-two million, three hundred twenty-eight thousand, eight hundred twenty-five".