225806017 has 4 divisors (see below), whose sum is σ = 226576980. Its totient is φ = 225035056.

The previous prime is 225806011. The next prime is 225806033. The reversal of 225806017 is 710608522.

225806017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192904321 + 32901696 = 13889^2 + 5736^2 .

It is a cyclic number.

It is not a de Polignac number, because 225806017 - 2⁷ = 225805889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225806017.

It is not an unprimeable number, because it can be changed into a prime (225806011) 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, 385042 + ... + 385627.

It is an arithmetic number, because the mean of its divisors is an integer number (56644245).

Almost surely, 2^225806017 is an apocalyptic number.

It is an amenable number.

225806017 is a deficient number, since it is larger than the sum of its proper divisors (770963).

225806017 is an equidigital number, since it uses as much as digits as its factorization.

225806017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770962.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 225806017 is about 15026.8432147274. The cubic root of 225806017 is about 608.9456093242.

The spelling of 225806017 in words is "two hundred twenty-five million, eight hundred six thousand, seventeen".