225606365 has 8 divisors (see below), whose sum is σ = 275166168. Its totient is φ = 177526080.

The previous prime is 225606343. The next prime is 225606373. The reversal of 225606365 is 563606522.

It can be written as a sum of positive squares in 4 ways, for example, as 2910436 + 222695929 = 1706^2 + 14923^2 .

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

It is not a de Polignac number, because 225606365 - 2¹⁸ = 225344221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369542 + ... + 370151.

It is an arithmetic number, because the mean of its divisors is an integer number (34395771).

Almost surely, 2^225606365 is an apocalyptic number.

It is an amenable number.

225606365 is a deficient number, since it is larger than the sum of its proper divisors (49559803).

225606365 is an equidigital number, since it uses as much as digits as its factorization.

225606365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739759.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 225606365 is about 15020.1985672627. The cubic root of 225606365 is about 608.7660849403.

The spelling of 225606365 in words is "two hundred twenty-five million, six hundred six thousand, three hundred sixty-five".