225868170 has 64 divisors (see below), whose sum is σ = 610467840. Its totient is φ = 52987200.

The previous prime is 225868169. The next prime is 225868231. The reversal of 225868170 is 71868522.

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, 810 + ... + 21269.

It is an arithmetic number, because the mean of its divisors is an integer number (9538560).

Almost surely, 2^225868170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225868170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305233920).

225868170 is an abundant number, since it is smaller than the sum of its proper divisors (384599670).

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

225868170 is a wasteful number, since it uses less digits than its factorization.

225868170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 225868170 is about 15028.9111382029. The cubic root of 225868170 is about 609.0014748630.

The spelling of 225868170 in words is "two hundred twenty-five million, eight hundred sixty-eight thousand, one hundred seventy".