13205055 has 8 divisors (see below), whose sum is σ = 21128112. Its totient is φ = 7042688.

The previous prime is 13205029. The next prime is 13205069. The reversal of 13205055 is 55050231.

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 13205055 - 2¹⁵ = 13172287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440154 + ... + 440183.

It is an arithmetic number, because the mean of its divisors is an integer number (2641014).

Almost surely, 2^13205055 is an apocalyptic number.

13205055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13205055 is a deficient number, since it is larger than the sum of its proper divisors (7923057).

13205055 is an equidigital number, since it uses as much as digits as its factorization.

13205055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880345.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 13205055 is about 3633.8760298062. The cubic root of 13205055 is about 236.3633145280.

Adding to 13205055 its reverse (55050231), we get a palindrome (68255286).

The spelling of 13205055 in words is "thirteen million, two hundred five thousand, fifty-five".