2255791 has 4 divisors (see below), whose sum is σ = 2263312. Its totient is φ = 2248272.

The previous prime is 2255783. The next prime is 2255797. The reversal of 2255791 is 1975522.

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

It is a cyclic number.

It is not a de Polignac number, because 2255791 - 2³ = 2255783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255797) 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 in 3 ways as a sum of consecutive naturals, for example, 3291 + ... + 3916.

It is an arithmetic number, because the mean of its divisors is an integer number (565828).

2^2255791 is an apocalyptic number.

2255791 is a deficient number, since it is larger than the sum of its proper divisors (7521).

2255791 is an equidigital number, since it uses as much as digits as its factorization.

2255791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520.

The product of its digits is 6300, while the sum is 31.

The square root of 2255791 is about 1501.9290928669. The cubic root of 2255791 is about 131.1493934994.

The spelling of 2255791 in words is "two million, two hundred fifty-five thousand, seven hundred ninety-one".