223424225 has 6 divisors (see below), whose sum is σ = 277046070. Its totient is φ = 178739360.

The previous prime is 223424213. The next prime is 223424261. The reversal of 223424225 is 522424322.

It is a happy number.

223424225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5094049 + 218330176 = 2257^2 + 14776^2 .

It is not a de Polignac number, because 223424225 - 2¹² = 223420129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223424194 and 223424203.

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, 4468460 + ... + 4468509.

It is an arithmetic number, because the mean of its divisors is an integer number (46174345).

Almost surely, 2^223424225 is an apocalyptic number.

223424225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223424225 is a deficient number, since it is larger than the sum of its proper divisors (53621845).

223424225 is an equidigital number, since it uses as much as digits as its factorization.

223424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8936979 (or 8936974 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 223424225 is about 14947.3818777738. The cubic root of 223424225 is about 606.7969931268.

Adding to 223424225 its reverse (522424322), we get a palindrome (745848547).

The spelling of 223424225 in words is "two hundred twenty-three million, four hundred twenty-four thousand, two hundred twenty-five".