13305533 has 8 divisors (see below), whose sum is σ = 13984608. Its totient is φ = 12643344.

The previous prime is 13305517. The next prime is 13305563. The reversal of 13305533 is 33550331.

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

It is not a de Polignac number, because 13305533 - 2⁴ = 13305517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13305499 and 13305508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13305563) 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, 2591 + ... + 5772.

It is an arithmetic number, because the mean of its divisors is an integer number (1748076).

Almost surely, 2^13305533 is an apocalyptic number.

It is an amenable number.

13305533 is a deficient number, since it is larger than the sum of its proper divisors (679075).

13305533 is an equidigital number, since it uses as much as digits as its factorization.

13305533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 13305533 is about 3647.6750129363. The cubic root of 13305533 is about 236.9613009267.

Adding to 13305533 its reverse (33550331), we get a palindrome (46855864).

The spelling of 13305533 in words is "thirteen million, three hundred five thousand, five hundred thirty-three".