8522256 has 40 divisors (see below), whose sum is σ = 22533280. Its totient is φ = 2774016.

The previous prime is 8522251. The next prime is 8522281. The reversal of 8522256 is 6522258.

8522256 is a nontrivial binomial coefficient, being equal to C(4129, 2).

It is a d-powerful number, because it can be written as 8³ + 5 + 2¹¹ + 2¹⁷ + 2²³ + 5 + 6 .

It is not an unprimeable number, because it can be changed into a prime (8522251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (563332).

Almost surely, 2^8522256 is an apocalyptic number.

8522256 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

8522256 is the 4128-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8522256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11266640).

8522256 is an abundant number, since it is smaller than the sum of its proper divisors (14011024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8522256 is a wasteful number, since it uses less digits than its factorization.

8522256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183 (or 4177 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 8522256 is about 2919.2903247193. The cubic root of 8522256 is about 204.2607200884.

It can be divided in two parts, 8522 and 256, that added together give a palindrome (8778).

The spelling of 8522256 in words is "eight million, five hundred twenty-two thousand, two hundred fifty-six".