13320533 has 2 divisors, whose sum is σ = 13320534. Its totient is φ = 13320532.

The previous prime is 13320521. The next prime is 13320551. The reversal of 13320533 is 33502331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 3598609 = 3118^2 + 1897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13320533 is a prime.

It is a super-3 number, since 3×13320533³ (a number of 22 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13320233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660266 + 6660267.

It is an arithmetic number, because the mean of its divisors is an integer number (6660267).

Almost surely, 2^13320533 is an apocalyptic number.

It is an amenable number.

13320533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320533 is an equidigital number, since it uses as much as digits as its factorization.

13320533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 13320533 is about 3649.7305379987. The cubic root of 13320533 is about 237.0503136368.

Adding to 13320533 its reverse (33502331), we get a palindrome (46822864).

The spelling of 13320533 in words is "thirteen million, three hundred twenty thousand, five hundred thirty-three".