225994660 has 24 divisors (see below), whose sum is σ = 477247680. Its totient is φ = 89891424.

The previous prime is 225994621. The next prime is 225994661. The reversal of 225994660 is 66499522.

225994660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (225994661) 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, 27984 + ... + 35143.

It is an arithmetic number, because the mean of its divisors is an integer number (19885320).

Almost surely, 2^225994660 is an apocalyptic number.

225994660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225994660 is an abundant number, since it is smaller than the sum of its proper divisors (251253020).

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

225994660 is a wasteful number, since it uses less digits than its factorization.

225994660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63315 (or 63313 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 225994660 is about 15033.1187715657. The cubic root of 225994660 is about 609.1151373609.

The spelling of 225994660 in words is "two hundred twenty-five million, nine hundred ninety-four thousand, six hundred sixty".