225223242 has 16 divisors (see below), whose sum is σ = 476943552. Its totient is φ = 70658240.

The previous prime is 225223223. The next prime is 225223253. The reversal of 225223242 is 242322522.

225223242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1103934 + ... + 1104137.

It is an arithmetic number, because the mean of its divisors is an integer number (29808972).

Almost surely, 2^225223242 is an apocalyptic number.

225223242 is an abundant number, since it is smaller than the sum of its proper divisors (251720310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225223242 is a wasteful number, since it uses less digits than its factorization.

225223242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208093.

The product of its digits is 3840, while the sum is 24.

The square root of 225223242 is about 15007.4395551007. The cubic root of 225223242 is about 608.4212890567.

Adding to 225223242 its reverse (242322522), we get a palindrome (467545764).

The spelling of 225223242 in words is "two hundred twenty-five million, two hundred twenty-three thousand, two hundred forty-two".