8591225 has 6 divisors (see below), whose sum is σ = 10653150. Its totient is φ = 6872960.

The previous prime is 8591183. The next prime is 8591227. The reversal of 8591225 is 5221958.

8591225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1263376 + 7327849 = 1124^2 + 2707^2 .

It is not a de Polignac number, because 8591225 - 2⁸ = 8590969 is a prime.

It is a super-3 number, since 3×8591225³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8591191 and 8591200.

It is not an unprimeable number, because it can be changed into a prime (8591227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171800 + ... + 171849.

It is an arithmetic number, because the mean of its divisors is an integer number (1775525).

Almost surely, 2^8591225 is an apocalyptic number.

It is an amenable number.

8591225 is a deficient number, since it is larger than the sum of its proper divisors (2061925).

8591225 is a wasteful number, since it uses less digits than its factorization.

8591225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343659 (or 343654 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 8591225 is about 2931.0791528036. The cubic root of 8591225 is about 204.8102547279.

The spelling of 8591225 in words is "eight million, five hundred ninety-one thousand, two hundred twenty-five".