225031242 has 16 divisors (see below), whose sum is σ = 465582240. Its totient is φ = 72423792.

The previous prime is 225031217. The next prime is 225031291. The reversal of 225031242 is 242130522.

225031242 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646468 + ... + 646815.

It is an arithmetic number, because the mean of its divisors is an integer number (29098890).

Almost surely, 2^225031242 is an apocalyptic number.

225031242 is an abundant number, since it is smaller than the sum of its proper divisors (240550998).

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

225031242 is a wasteful number, since it uses less digits than its factorization.

225031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293317.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 225031242 is about 15001.0413638520. The cubic root of 225031242 is about 608.2483493885.

Adding to 225031242 its reverse (242130522), we get a palindrome (467161764).

The spelling of 225031242 in words is "two hundred twenty-five million, thirty-one thousand, two hundred forty-two".