8005005005 has 4 divisors (see below), whose sum is σ = 9606006012. Its totient is φ = 6404004000.

The previous prime is 8005004993. The next prime is 8005005023. The reversal of 8005005005 is 5005005008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2367698281 + 5637306724 = 48659^2 + 75082^2 .

It is not a de Polignac number, because 8005005005 - 2²⁴ = 7988227789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800500496 + ... + 800500505.

It is an arithmetic number, because the mean of its divisors is an integer number (2401501503).

Almost surely, 2^8005005005 is an apocalyptic number.

It is an amenable number.

8005005005 is a deficient number, since it is larger than the sum of its proper divisors (1601001007).

8005005005 is a wasteful number, since it uses less digits than its factorization.

8005005005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601001006.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 8005005005 is about 89470.6935538112. The cubic root of 8005005005 is about 2000.4169968008.

The spelling of 8005005005 in words is "eight billion, five million, five thousand, five".