5000811209 has 2 divisors, whose sum is σ = 5000811210. Its totient is φ = 5000811208.

The previous prime is 5000811187. The next prime is 5000811217. The reversal of 5000811209 is 9021180005.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3624401209 + 1376410000 = 60203^2 + 37100^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000811209 - 2²⁰ = 4999762633 is a prime.

It is a super-2 number, since 2×5000811209² = 50016225496120083362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5000811289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500405604 + 2500405605.

It is an arithmetic number, because the mean of its divisors is an integer number (2500405605).

Almost surely, 2^5000811209 is an apocalyptic number.

It is an amenable number.

5000811209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000811209 is an equidigital number, since it uses as much as digits as its factorization.

5000811209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 5000811209 is about 70716.4139998629. The cubic root of 5000811209 is about 1710.0684182011.

The spelling of 5000811209 in words is "five billion, eight hundred eleven thousand, two hundred nine".