13333505 has 8 divisors (see below), whose sum is σ = 16432872. Its totient is φ = 10378368.

The previous prime is 13333501. The next prime is 13333511. The reversal of 13333505 is 50533331.

13333505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7360369 + 5973136 = 2713^2 + 2444^2 .

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 13333505 - 2² = 13333501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13333501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35852 + ... + 36221.

It is an arithmetic number, because the mean of its divisors is an integer number (2054109).

Almost surely, 2^13333505 is an apocalyptic number.

It is an amenable number.

13333505 is a deficient number, since it is larger than the sum of its proper divisors (3099367).

13333505 is an equidigital number, since it uses as much as digits as its factorization.

13333505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72115.

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

The square root of 13333505 is about 3651.5072230519. The cubic root of 13333505 is about 237.1272379617.

Adding to 13333505 its reverse (50533331), we get a palindrome (63866836).

The spelling of 13333505 in words is "thirteen million, three hundred thirty-three thousand, five hundred five".