225441250 has 60 divisors (see below), whose sum is σ = 451810062. Its totient is φ = 84048000.

The previous prime is 225441241. The next prime is 225441253. The reversal of 225441250 is 52144522.

It can be written as a sum of positive squares in 5 ways, for example, as 14523721 + 210917529 = 3811^2 + 14523^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225441253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2188699 + ... + 2188801.

Almost surely, 2^225441250 is an apocalyptic number.

225441250 is an abundant number, since it is smaller than the sum of its proper divisors (226368812).

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

225441250 is an equidigital number, since it uses as much as digits as its factorization.

225441250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 225441250 is about 15014.7011292266. The cubic root of 225441250 is about 608.6175357274.

Adding to 225441250 its reverse (52144522), we get a palindrome (277585772).

The spelling of 225441250 in words is "two hundred twenty-five million, four hundred forty-one thousand, two hundred fifty".