225788660 has 24 divisors (see below), whose sum is σ = 481236000. Its totient is φ = 88966944.

The previous prime is 225788653. The next prime is 225788699. The reversal of 225788660 is 66887522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82910 + ... + 85589.

It is an arithmetic number, because the mean of its divisors is an integer number (20051500).

Almost surely, 2^225788660 is an apocalyptic number.

225788660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225788660 is an abundant number, since it is smaller than the sum of its proper divisors (255447340).

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

225788660 is a wasteful number, since it uses less digits than its factorization.

225788660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168575 (or 168573 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 225788660 is about 15026.2656704851. The cubic root of 225788660 is about 608.9300063450.

The spelling of 225788660 in words is "two hundred twenty-five million, seven hundred eighty-eight thousand, six hundred sixty".