6755221 has 8 divisors (see below), whose sum is σ = 7509024. Its totient is φ = 6024720.

The previous prime is 6755191. The next prime is 6755227. The reversal of 6755221 is 1225576.

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

It is a cyclic number.

It is not a de Polignac number, because 6755221 - 2⁷ = 6755093 is a prime.

It is a Duffinian number.

6755221 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6755221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6755227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (938628).

Almost surely, 2^6755221 is an apocalyptic number.

It is an amenable number.

6755221 is a deficient number, since it is larger than the sum of its proper divisors (753803).

6755221 is a wasteful number, since it uses less digits than its factorization.

6755221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11651.

The product of its digits is 4200, while the sum is 28.

The square root of 6755221 is about 2599.0807990518. The cubic root of 6755221 is about 189.0368712067.

The spelling of 6755221 in words is "six million, seven hundred fifty-five thousand, two hundred twenty-one".