225530766 has 24 divisors (see below), whose sum is σ = 504414144. Its totient is φ = 72751680.

The previous prime is 225530759. The next prime is 225530771. The reversal of 225530766 is 667035522.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 225530766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201531 + ... + 202646.

It is an arithmetic number, because the mean of its divisors is an integer number (21017256).

Almost surely, 2^225530766 is an apocalyptic number.

225530766 is an abundant number, since it is smaller than the sum of its proper divisors (278883378).

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

225530766 is a wasteful number, since it uses less digits than its factorization.

225530766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404216 (or 404213 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 225530766 is about 15017.6817784903. The cubic root of 225530766 is about 608.6980796947.

The spelling of 225530766 in words is "two hundred twenty-five million, five hundred thirty thousand, seven hundred sixty-six".