6650533 has 2 divisors, whose sum is σ = 6650534. Its totient is φ = 6650532.

The previous prime is 6650531. The next prime is 6650557. The reversal of 6650533 is 3350566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6640929 + 9604 = 2577^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 6650533 - 2¹ = 6650531 is a prime.

Together with 6650531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6650531) 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 as a sum of consecutive naturals, namely, 3325266 + 3325267.

It is an arithmetic number, because the mean of its divisors is an integer number (3325267).

Almost surely, 2^6650533 is an apocalyptic number.

It is an amenable number.

6650533 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650533 is an equidigital number, since it uses as much as digits as its factorization.

6650533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 6650533 is about 2578.8627338422. The cubic root of 6650533 is about 188.0552595216.

The spelling of 6650533 in words is "six million, six hundred fifty thousand, five hundred thirty-three".