8225556 has 48 divisors (see below), whose sum is σ = 20697600. Its totient is φ = 2534112.

The previous prime is 8225551. The next prime is 8225573. The reversal of 8225556 is 6555228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8225551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9385 + ... + 10223.

It is an arithmetic number, because the mean of its divisors is an integer number (431200).

Almost surely, 2^8225556 is an apocalyptic number.

8225556 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8225556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10348800).

8225556 is an abundant number, since it is smaller than the sum of its proper divisors (12472044).

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

8225556 is a wasteful number, since it uses less digits than its factorization.

8225556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 8225556 is about 2868.0230124600. The cubic root of 8225556 is about 201.8622398297.

The spelling of 8225556 in words is "eight million, two hundred twenty-five thousand, five hundred fifty-six".