13256455 has 4 divisors (see below), whose sum is σ = 15907752. Its totient is φ = 10605160.

The previous prime is 13256449. The next prime is 13256527. The reversal of 13256455 is 55465231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55465231 = 31 ⋅1789201.

It is not a de Polignac number, because 13256455 - 2⁵ = 13256423 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1325641 + ... + 1325650.

It is an arithmetic number, because the mean of its divisors is an integer number (3976938).

Almost surely, 2^13256455 is an apocalyptic number.

13256455 is a deficient number, since it is larger than the sum of its proper divisors (2651297).

13256455 is an equidigital number, since it uses as much as digits as its factorization.

13256455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651296.

The product of its digits is 18000, while the sum is 31.

The square root of 13256455 is about 3640.9414991181. The cubic root of 13256455 is about 236.6695948413.

The spelling of 13256455 in words is "thirteen million, two hundred fifty-six thousand, four hundred fifty-five".