225445330 has 64 divisors (see below), whose sum is σ = 483978240. Its totient is φ = 74649600.

The previous prime is 225445327. The next prime is 225445343. The reversal of 225445330 is 33544522.

225445330 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56026 + ... + 59914.

It is an arithmetic number, because the mean of its divisors is an integer number (7562160).

Almost surely, 2^225445330 is an apocalyptic number.

225445330 is an abundant number, since it is smaller than the sum of its proper divisors (258532910).

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

225445330 is a wasteful number, since it uses less digits than its factorization.

225445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 225445330 is about 15014.8369954522. The cubic root of 225445330 is about 608.6212072598.

Adding to 225445330 its reverse (33544522), we get a palindrome (258989852).

The spelling of 225445330 in words is "two hundred twenty-five million, four hundred forty-five thousand, three hundred thirty".