13509255 has 32 divisors (see below), whose sum is σ = 22511808. Its totient is φ = 6912000.

The previous prime is 13509253. The next prime is 13509269. The reversal of 13509255 is 55290531.

13509255 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13509255 - 2¹ = 13509253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55935 + ... + 56175.

It is an arithmetic number, because the mean of its divisors is an integer number (703494).

Almost surely, 2^13509255 is an apocalyptic number.

13509255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13509255 is a deficient number, since it is larger than the sum of its proper divisors (9002553).

13509255 is a wasteful number, since it uses less digits than its factorization.

13509255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 13509255 is about 3675.4938443698. The cubic root of 13509255 is about 238.1645579462.

Adding to 13509255 its reverse (55290531), we get a palindrome (68799786).

The spelling of 13509255 in words is "thirteen million, five hundred nine thousand, two hundred fifty-five".