6750233221 has 8 divisors (see below), whose sum is σ = 6885678584. Its totient is φ = 6615587520.

The previous prime is 6750233219. The next prime is 6750233239. The reversal of 6750233221 is 1223320576.

It can be written as a sum of positive squares in 4 ways, for example, as 90041121 + 6660192100 = 9489^2 + 81610^2 .

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 6750233221 - 2¹ = 6750233219 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 (6750233251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182850 + ... + 216643.

It is an arithmetic number, because the mean of its divisors is an integer number (860709823).

Almost surely, 2^6750233221 is an apocalyptic number.

6750233221 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6750233221 is a deficient number, since it is larger than the sum of its proper divisors (135445363).

6750233221 is a wasteful number, since it uses less digits than its factorization.

6750233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399831.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 6750233221 is about 82159.8029513216. The cubic root of 6750233221 is about 1889.9033405211.

Adding to 6750233221 its reverse (1223320576), we get a palindrome (7973553797).

The spelling of 6750233221 in words is "six billion, seven hundred fifty million, two hundred thirty-three thousand, two hundred twenty-one".