13255285 has 8 divisors (see below), whose sum is σ = 15943896. Its totient is φ = 10579200.

The previous prime is 13255283. The next prime is 13255303. The reversal of 13255285 is 58255231.

It can be written as a sum of positive squares in 4 ways, for example, as 7524049 + 5731236 = 2743^2 + 2394^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13255285 - 2¹ = 13255283 is a prime.

It is a super-3 number, since 3×13255285³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13255283) 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 7 ways as a sum of consecutive naturals, for example, 616 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1992987).

Almost surely, 2^13255285 is an apocalyptic number.

It is an amenable number.

13255285 is a deficient number, since it is larger than the sum of its proper divisors (2688611).

13255285 is an equidigital number, since it uses as much as digits as its factorization.

13255285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263.

The product of its digits is 12000, while the sum is 31.

The square root of 13255285 is about 3640.7808228456. The cubic root of 13255285 is about 236.6626319046.

The spelling of 13255285 in words is "thirteen million, two hundred fifty-five thousand, two hundred eighty-five".