13255549 has 2 divisors, whose sum is σ = 13255550. Its totient is φ = 13255548.

The previous prime is 13255547. The next prime is 13255553. The reversal of 13255549 is 94555231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 3583449 = 3110^2 + 1893^2 .

It is a cyclic number.

It is not a de Polignac number, because 13255549 - 2¹ = 13255547 is a prime.

Together with 13255547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13255547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6627774 + 6627775.

It is an arithmetic number, because the mean of its divisors is an integer number (6627775).

Almost surely, 2^13255549 is an apocalyptic number.

It is an amenable number.

13255549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13255549 is an equidigital number, since it uses as much as digits as its factorization.

13255549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 34.

The square root of 13255549 is about 3640.8170786240. The cubic root of 13255549 is about 236.6642030646.

The spelling of 13255549 in words is "thirteen million, two hundred fifty-five thousand, five hundred forty-nine".