2223523 has 4 divisors (see below), whose sum is σ = 2270880. Its totient is φ = 2176168.

The previous prime is 2223521. The next prime is 2223541. The reversal of 2223523 is 3253222.

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 2223523 - 2¹ = 2223521 is a prime.

It is a d-powerful number, because it can be written as 2³ + 2¹⁰ + 2¹⁶ + 3⁶ + 5² + 2²¹ + 3¹⁰ .

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 2223523.

It is not an unprimeable number, because it can be changed into a prime (2223521) 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, 23608 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (567720).

2^2223523 is an apocalyptic number.

2223523 is a deficient number, since it is larger than the sum of its proper divisors (47357).

2223523 is an equidigital number, since it uses as much as digits as its factorization.

2223523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47356.

The product of its digits is 720, while the sum is 19.

The square root of 2223523 is about 1491.1482153026. The cubic root of 2223523 is about 130.5210449367.

Adding to 2223523 its reverse (3253222), we get a palindrome (5476745).

The spelling of 2223523 in words is "two million, two hundred twenty-three thousand, five hundred twenty-three".