2543223 has 4 divisors (see below), whose sum is σ = 3390968. Its totient is φ = 1695480.

The previous prime is 2543221. The next prime is 2543237. The reversal of 2543223 is 3223452.

2543223 is nontrivially palindromic in base 11.

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

It is not a de Polignac number, because 2543223 - 2¹ = 2543221 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁹ + 4 + 3³ + 2¹⁸ + 2¹⁸ + 3⁵ .

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2543223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423868 + ... + 423873.

It is an arithmetic number, because the mean of its divisors is an integer number (847742).

2^2543223 is an apocalyptic number.

2543223 is a deficient number, since it is larger than the sum of its proper divisors (847745).

2543223 is an equidigital number, since it uses as much as digits as its factorization.

2543223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847744.

The product of its digits is 1440, while the sum is 21.

The square root of 2543223 is about 1594.7485695244. The cubic root of 2543223 is about 136.4985844290.

Adding to 2543223 its reverse (3223452), we get a palindrome (5766675).

The spelling of 2543223 in words is "two million, five hundred forty-three thousand, two hundred twenty-three".