8566225 has 12 divisors (see below), whose sum is σ = 10669084. Its totient is φ = 6822720.

The previous prime is 8566213. The next prime is 8566237. The reversal of 8566225 is 5226658.

It is an interprime number because it is at equal distance from previous prime (8566213) and next prime (8566237).

It can be written as a sum of positive squares in 6 ways, for example, as 294849 + 8271376 = 543^2 + 2876^2 .

It is not a de Polignac number, because 8566225 - 2⁵ = 8566193 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

8566225 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6307 + ... + 7543.

Almost surely, 2^8566225 is an apocalyptic number.

It is an amenable number.

8566225 is a deficient number, since it is larger than the sum of its proper divisors (2102859).

8566225 is a wasteful number, since it uses less digits than its factorization.

8566225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1519 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 8566225 is about 2926.8114049252. The cubic root of 8566225 is about 204.6113994630.

The spelling of 8566225 in words is "eight million, five hundred sixty-six thousand, two hundred twenty-five".