8865225 has 54 divisors (see below), whose sum is σ = 16807518. Its totient is φ = 4464000.

The previous prime is 8865209. The next prime is 8865289. The reversal of 8865225 is 5225688.

It can be written as a sum of positive squares in 3 ways, for example, as 8649 + 8856576 = 93^2 + 2976^2 .

It is not a de Polignac number, because 8865225 - 2⁴ = 8865209 is a prime.

It is an Ulam number.

Its product of digits (38400) is a multiple of the sum of its prime divisors (80).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8865225.

It is a congruent 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 53 ways as a sum of consecutive naturals, for example, 216205 + ... + 216245.

Almost surely, 2^8865225 is an apocalyptic number.

It is an amenable number.

8865225 is a deficient number, since it is larger than the sum of its proper divisors (7942293).

8865225 is a wasteful number, since it uses less digits than its factorization.

8865225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 80 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 8865225 is about 2977.4527704063. The cubic root of 8865225 is about 206.9648473529.

The spelling of 8865225 in words is "eight million, eight hundred sixty-five thousand, two hundred twenty-five".