5056666609 has 4 divisors (see below), whose sum is σ = 5354117604. Its totient is φ = 4759215616.

The previous prime is 5056666607. The next prime is 5056666619. The reversal of 5056666609 is 9066666505.

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 4333325584 + 723341025 = 65828^2 + 26895^2 .

It is a cyclic number.

It is not a de Polignac number, because 5056666609 - 2¹ = 5056666607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5056666607) by changing a digit.

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, 148725472 + ... + 148725505.

It is an arithmetic number, because the mean of its divisors is an integer number (1338529401).

Almost surely, 2^5056666609 is an apocalyptic number.

It is an amenable number.

5056666609 is a deficient number, since it is larger than the sum of its proper divisors (297450995).

5056666609 is a wasteful number, since it uses less digits than its factorization.

5056666609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297450994.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The square root of 5056666609 is about 71110.2426447836. The cubic root of 5056666609 is about 1716.4115976868.

The spelling of 5056666609 in words is "five billion, fifty-six million, six hundred sixty-six thousand, six hundred nine".