13115255 has 4 divisors (see below), whose sum is σ = 15738312. Its totient is φ = 10492200.

The previous prime is 13115251. The next prime is 13115257. The reversal of 13115255 is 55251131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13115255 - 2² = 13115251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13115255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311521 + ... + 1311530.

It is an arithmetic number, because the mean of its divisors is an integer number (3934578).

Almost surely, 2^13115255 is an apocalyptic number.

13115255 is a deficient number, since it is larger than the sum of its proper divisors (2623057).

13115255 is an equidigital number, since it uses as much as digits as its factorization.

13115255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623056.

The product of its digits is 750, while the sum is 23.

The square root of 13115255 is about 3621.4989990334. The cubic root of 13115255 is about 235.8263049705.

Adding to 13115255 its reverse (55251131), we get a palindrome (68366386).

The spelling of 13115255 in words is "thirteen million, one hundred fifteen thousand, two hundred fifty-five".