6752221657 has 2 divisors, whose sum is σ = 6752221658. Its totient is φ = 6752221656.

The previous prime is 6752221643. The next prime is 6752221669. The reversal of 6752221657 is 7561222576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5545631961 + 1206589696 = 74469^2 + 34736^2 .

It is a cyclic number.

It is not a de Polignac number, because 6752221657 - 2¹⁹ = 6751697369 is a prime.

It is not a weakly prime, because it can be changed into another prime (6752221627) by changing a digit.

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 as a sum of consecutive naturals, namely, 3376110828 + 3376110829.

It is an arithmetic number, because the mean of its divisors is an integer number (3376110829).

Almost surely, 2^6752221657 is an apocalyptic number.

It is an amenable number.

6752221657 is a deficient number, since it is larger than the sum of its proper divisors (1).

6752221657 is an equidigital number, since it uses as much as digits as its factorization.

6752221657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 6752221657 is about 82171.9030873692. The cubic root of 6752221657 is about 1890.0888937594.

The spelling of 6752221657 in words is "six billion, seven hundred fifty-two million, two hundred twenty-one thousand, six hundred fifty-seven".