225494472 has 48 divisors (see below), whose sum is σ = 655778160. Its totient is φ = 64426656.

The previous prime is 225494471. The next prime is 225494543. The reversal of 225494472 is 274494522.

It is a self number, because there is not a number n which added to its sum of digits gives 225494472.

It is not an unprimeable number, because it can be changed into a prime (225494471) 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 11 ways as a sum of consecutive naturals, for example, 94698 + ... + 97049.

It is an arithmetic number, because the mean of its divisors is an integer number (13662045).

Almost surely, 2^225494472 is an apocalyptic number.

It is an amenable number.

225494472 is an abundant number, since it is smaller than the sum of its proper divisors (430283688).

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

225494472 is a wasteful number, since it uses less digits than its factorization.

225494472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191770 (or 191759 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 225494472 is about 15016.4733542866. The cubic root of 225494472 is about 608.6654259483.

Subtracting 225494472 from its reverse (274494522), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 225494472 in words is "two hundred twenty-five million, four hundred ninety-four thousand, four hundred seventy-two".