225532280 has 32 divisors (see below), whose sum is σ = 534157200. Its totient is φ = 85464576.

The previous prime is 225532271. The next prime is 225532283. The reversal of 225532280 is 82235522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225532283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147617 + ... + 149136.

Almost surely, 2^225532280 is an apocalyptic number.

225532280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225532280 is an abundant number, since it is smaller than the sum of its proper divisors (308624920).

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

225532280 is a wasteful number, since it uses less digits than its factorization.

225532280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296783 (or 296779 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 225532280 is about 15017.7321856531. The cubic root of 225532280 is about 608.6994417658.

The spelling of 225532280 in words is "two hundred twenty-five million, five hundred thirty-two thousand, two hundred eighty".