225403170 has 128 divisors (see below), whose sum is σ = 604661760. Its totient is φ = 53514240.

The previous prime is 225403169. The next prime is 225403229. The reversal of 225403170 is 71304522.

225403170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225403170.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 837796 + ... + 838064.

It is an arithmetic number, because the mean of its divisors is an integer number (4723920).

Almost surely, 2^225403170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225403170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302330880).

225403170 is an abundant number, since it is smaller than the sum of its proper divisors (379258590).

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

225403170 is a wasteful number, since it uses less digits than its factorization.

225403170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 225403170 is about 15013.4329851637. The cubic root of 225403170 is about 608.5832659553.

Adding to 225403170 its reverse (71304522), we get a palindrome (296707692).

The spelling of 225403170 in words is "two hundred twenty-five million, four hundred three thousand, one hundred seventy".