225143250 has 32 divisors (see below), whose sum is σ = 561959424. Its totient is φ = 60038000.

The previous prime is 225143213. The next prime is 225143267. The reversal of 225143250 is 52341522.

225143250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 225143250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149346 + ... + 150845.

It is an arithmetic number, because the mean of its divisors is an integer number (17561232).

Almost surely, 2^225143250 is an apocalyptic number.

225143250 is an abundant number, since it is smaller than the sum of its proper divisors (336816174).

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

225143250 is a wasteful number, since it uses less digits than its factorization.

225143250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300211 (or 300201 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225143250 is about 15004.7742402210. The cubic root of 225143250 is about 608.3492500162.

Adding to 225143250 its reverse (52341522), we get a palindrome (277484772).

The spelling of 225143250 in words is "two hundred twenty-five million, one hundred forty-three thousand, two hundred fifty".