13155505 has 16 divisors (see below), whose sum is σ = 18129600. Its totient is φ = 9063360.

The previous prime is 13155503. The next prime is 13155529. The reversal of 13155505 is 50555131.

13155505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13155505 - 2¹ = 13155503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13155505.

It is not an unprimeable number, because it can be changed into a prime (13155503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5250 + ... + 7339.

It is an arithmetic number, because the mean of its divisors is an integer number (1133100).

Almost surely, 2^13155505 is an apocalyptic number.

It is an amenable number.

13155505 is a deficient number, since it is larger than the sum of its proper divisors (4974095).

13155505 is a wasteful number, since it uses less digits than its factorization.

13155505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12624.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 13155505 is about 3627.0518331008. The cubic root of 13155505 is about 236.0673046091.

The spelling of 13155505 in words is "thirteen million, one hundred fifty-five thousand, five hundred five".