225547760 has 20 divisors (see below), whose sum is σ = 524398728. Its totient is φ = 90219072.

The previous prime is 225547711. The next prime is 225547781. The reversal of 225547760 is 67745522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409594 + ... + 1409753.

Almost surely, 2^225547760 is an apocalyptic number.

225547760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225547760 is an abundant number, since it is smaller than the sum of its proper divisors (298850968).

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

225547760 is a wasteful number, since it uses less digits than its factorization.

225547760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819360 (or 2819354 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 225547760 is about 15018.2475675426. The cubic root of 225547760 is about 608.7133680085.

The spelling of 225547760 in words is "two hundred twenty-five million, five hundred forty-seven thousand, seven hundred sixty".