6756255565 has 8 divisors (see below), whose sum is σ = 8142304248. Its totient is φ = 5381806080.

The previous prime is 6756255557. The next prime is 6756255607. The reversal of 6756255565 is 5655526576.

It can be written as a sum of positive squares in 4 ways, for example, as 656333161 + 6099922404 = 25619^2 + 78102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6756255565 - 2³ = 6756255557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2898516 + ... + 2900845.

It is an arithmetic number, because the mean of its divisors is an integer number (1017788031).

Almost surely, 2^6756255565 is an apocalyptic number.

It is an amenable number.

6756255565 is a deficient number, since it is larger than the sum of its proper divisors (1386048683).

6756255565 is a wasteful number, since it uses less digits than its factorization.

6756255565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799599.

The product of its digits is 9450000, while the sum is 52.

The square root of 6756255565 is about 82196.4449657040. Note that the first 3 decimals coincide. The cubic root of 6756255565 is about 1890.4652107343.

The spelling of 6756255565 in words is "six billion, seven hundred fifty-six million, two hundred fifty-five thousand, five hundred sixty-five".