13500055 has 8 divisors (see below), whose sum is σ = 16294752. Its totient is φ = 10736928.

The previous prime is 13500049. The next prime is 13500059. The reversal of 13500055 is 55000531.

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 13500055 - 2⁹ = 13499543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500059) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6939 + ... + 8668.

It is an arithmetic number, because the mean of its divisors is an integer number (2036844).

Almost surely, 2^13500055 is an apocalyptic number.

13500055 is a deficient number, since it is larger than the sum of its proper divisors (2794697).

13500055 is a wasteful number, since it uses less digits than its factorization.

13500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 13500055 is about 3674.2420987191. The cubic root of 13500055 is about 238.1104811543.

Adding to 13500055 its reverse (55000531), we get a palindrome (68500586).

The spelling of 13500055 in words is "thirteen million, five hundred thousand, fifty-five".