13255791 has 8 divisors (see below), whose sum is σ = 17846400. Its totient is φ = 8751192.

The previous prime is 13255783. The next prime is 13255793. The reversal of 13255791 is 19755231.

13255791 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13255791 - 2³ = 13255783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13255793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21141 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (2230800).

Almost surely, 2^13255791 is an apocalyptic number.

13255791 is a deficient number, since it is larger than the sum of its proper divisors (4590609).

13255791 is a wasteful number, since it uses less digits than its factorization.

13255791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43005.

The product of its digits is 9450, while the sum is 33.

The square root of 13255791 is about 3640.8503127704. The cubic root of 13255791 is about 236.6656432762.

The spelling of 13255791 in words is "thirteen million, two hundred fifty-five thousand, seven hundred ninety-one".