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225566 = 21110253
BaseRepresentation
bin110111000100011110
3102110102022
4313010132
524204231
64500142
71626425
oct670436
9373368
10225566
11144520
12aa652
137b893
145c2bc
1546c7b
hex3711e

225566 has 8 divisors (see below), whose sum is σ = 369144. Its totient is φ = 102520.

The previous prime is 225529. The next prime is 225569. The reversal of 225566 is 665522.

It is a happy number.

225566 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is a nialpdrome in base 12.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (46143).

2225566 is an apocalyptic number.

225566 is a deficient number, since it is larger than the sum of its proper divisors (143578).

225566 is a wasteful number, since it uses less digits than its factorization.

225566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266.

The product of its digits is 3600, while the sum is 26.

The square root of 225566 is about 474.9378906762. The cubic root of 225566 is about 60.8729776407.

The spelling of 225566 in words is "two hundred twenty-five thousand, five hundred sixty-six".

Divisors: 1 2 11 22 10253 20506 112783 225566