225185448 has 32 divisors (see below), whose sum is σ = 576696960. Its totient is φ = 73230720.

The previous prime is 225185447. The next prime is 225185449. The reversal of 225185448 is 844581522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225185447) and next prime (225185449).

It is not an unprimeable number, because it can be changed into a prime (225185447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113440 + ... + 115407.

It is an arithmetic number, because the mean of its divisors is an integer number (18021780).

Almost surely, 2^225185448 is an apocalyptic number.

It is an amenable number.

225185448 is an abundant number, since it is smaller than the sum of its proper divisors (351511512).

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

225185448 is a wasteful number, since it uses less digits than its factorization.

225185448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228897 (or 228893 counting only the distinct ones).

The product of its digits is 102400, while the sum is 39.

The square root of 225185448 is about 15006.1803267854. The cubic root of 225185448 is about 608.3872547354.

It can be divided in two parts, 22518 and 5448, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 225185448 in words is "two hundred twenty-five million, one hundred eighty-five thousand, four hundred forty-eight".