6505050005 has 4 divisors (see below), whose sum is σ = 7806060012. Its totient is φ = 5204040000.

The previous prime is 6505049981. The next prime is 6505050053. The reversal of 6505050005 is 5000505056.

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 4141437316 + 2363612689 = 64354^2 + 48617^2 .

It is not a de Polignac number, because 6505050005 - 2²⁴ = 6488272789 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, 650504996 + ... + 650505005.

It is an arithmetic number, because the mean of its divisors is an integer number (1951515003).

Almost surely, 2^6505050005 is an apocalyptic number.

It is an amenable number.

6505050005 is a deficient number, since it is larger than the sum of its proper divisors (1301010007).

6505050005 is a wasteful number, since it uses less digits than its factorization.

6505050005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301010006.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 6505050005 is about 80653.8902037589. The cubic root of 6505050005 is about 1866.7387661175.

The spelling of 6505050005 in words is "six billion, five hundred five million, fifty thousand, five".