8005566 has 32 divisors (see below), whose sum is σ = 16732800. Its totient is φ = 2550240.

The previous prime is 8005559. The next prime is 8005573. The reversal of 8005566 is 6655008.

It is an interprime number because it is at equal distance from previous prime (8005559) and next prime (8005573).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24021 + ... + 24351.

It is an arithmetic number, because the mean of its divisors is an integer number (522900).

Almost surely, 2^8005566 is an apocalyptic number.

8005566 is an abundant number, since it is smaller than the sum of its proper divisors (8727234).

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

8005566 is a wasteful number, since it uses less digits than its factorization.

8005566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 8005566 is about 2829.4108927478. The cubic root of 8005566 is about 200.0463725804.

The spelling of 8005566 in words is "eight million, five thousand, five hundred sixty-six".