4256223 has 4 divisors (see below), whose sum is σ = 5674968. Its totient is φ = 2837480.

The previous prime is 4256191. The next prime is 4256227. The reversal of 4256223 is 3226524.

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 4256223 - 2⁵ = 4256191 is a prime.

It is a D-number.

4256223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4256193 and 4256202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256227) 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, 709368 + ... + 709373.

It is an arithmetic number, because the mean of its divisors is an integer number (1418742).

Almost surely, 2^4256223 is an apocalyptic number.

4256223 is a deficient number, since it is larger than the sum of its proper divisors (1418745).

4256223 is a wasteful number, since it uses less digits than its factorization.

4256223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418744.

The product of its digits is 2880, while the sum is 24.

The square root of 4256223 is about 2063.0615599153. The cubic root of 4256223 is about 162.0596107404.

It can be divided in two parts, 42 and 56223, that added together give a palindrome (56265).

The spelling of 4256223 in words is "four million, two hundred fifty-six thousand, two hundred twenty-three".