6755036021 has 4 divisors (see below), whose sum is σ = 6792356844. Its totient is φ = 6717715200.

The previous prime is 6755035993. The next prime is 6755036027. The reversal of 6755036021 is 1206305576.

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 276556900 + 6478479121 = 16630^2 + 80489^2 .

It is a cyclic number.

It is not a de Polignac number, because 6755036021 - 2¹⁰ = 6755034997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6755036027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18660140 + ... + 18660501.

It is an arithmetic number, because the mean of its divisors is an integer number (1698089211).

Almost surely, 2^6755036021 is an apocalyptic number.

It is an amenable number.

6755036021 is a deficient number, since it is larger than the sum of its proper divisors (37320823).

6755036021 is a wasteful number, since it uses less digits than its factorization.

6755036021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37320822.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 6755036021 is about 82189.0261592142. The cubic root of 6755036021 is about 1890.3514571807.

The spelling of 6755036021 in words is "six billion, seven hundred fifty-five million, thirty-six thousand, twenty-one".