225909552 has 40 divisors (see below), whose sum is σ = 636655680. Its totient is φ = 68457280.

The previous prime is 225909547. The next prime is 225909559. The reversal of 225909552 is 255909522.

225909552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225909552.

It is not an unprimeable number, because it can be changed into a prime (225909559) 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, 213402 + ... + 214457.

It is an arithmetic number, because the mean of its divisors is an integer number (15916392).

Almost surely, 2^225909552 is an apocalyptic number.

225909552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225909552 is an abundant number, since it is smaller than the sum of its proper divisors (410746128).

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

225909552 is a wasteful number, since it uses less digits than its factorization.

225909552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427881 (or 427875 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 225909552 is about 15030.2878215954. The cubic root of 225909552 is about 609.0386649344.

The spelling of 225909552 in words is "two hundred twenty-five million, nine hundred nine thousand, five hundred fifty-two".