6566224 has 40 divisors (see below), whose sum is σ = 15177600. Its totient is φ = 2690688.

The previous prime is 6566179. The next prime is 6566227. The reversal of 6566224 is 4226656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6566227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302 + ... + 3850.

It is an arithmetic number, because the mean of its divisors is an integer number (379440).

Almost surely, 2^6566224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6566224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7588800).

6566224 is an abundant number, since it is smaller than the sum of its proper divisors (8611376).

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

6566224 is a wasteful number, since it uses less digits than its factorization.

6566224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2581 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 6566224 is about 2562.4644387776. The cubic root of 6566224 is about 187.2572170292.

The spelling of 6566224 in words is "six million, five hundred sixty-six thousand, two hundred twenty-four".