13320055 has 16 divisors (see below), whose sum is σ = 18330624. Its totient is φ = 9102240.

The previous prime is 13320029. The next prime is 13320071. The reversal of 13320055 is 55002331.

It is not a de Polignac number, because 13320055 - 2¹³ = 13311863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14644 + ... + 15526.

It is an arithmetic number, because the mean of its divisors is an integer number (1145664).

Almost surely, 2^13320055 is an apocalyptic number.

13320055 is a deficient number, since it is larger than the sum of its proper divisors (5010569).

13320055 is an equidigital number, since it uses as much as digits as its factorization.

13320055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 13320055 is about 3649.6650531247. The cubic root of 13320055 is about 237.0474781296.

Adding to 13320055 its reverse (55002331), we get a palindrome (68322386).

The spelling of 13320055 in words is "thirteen million, three hundred twenty thousand, fifty-five".