225002250 has 96 divisors (see below), whose sum is σ = 663788736. Its totient is φ = 54540000.

The previous prime is 225002249. The next prime is 225002287. The reversal of 225002250 is 52200522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20205 + ... + 29295.

It is an arithmetic number, because the mean of its divisors is an integer number (6914466).

Almost surely, 2^225002250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225002250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331894368).

225002250 is an abundant number, since it is smaller than the sum of its proper divisors (438786486).

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

225002250 is a wasteful number, since it uses less digits than its factorization.

225002250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125 (or 9112 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 225002250 is about 15000.0749998125. The cubic root of 225002250 is about 608.2222269512. Note that the first 5 decimals are identical.

Adding to 225002250 its reverse (52200522), we get a palindrome (277202772).

The spelling of 225002250 in words is "two hundred twenty-five million, two thousand, two hundred fifty".