224533 has 4 divisors (see below), whose sum is σ = 231808. Its totient is φ = 217260.

The previous prime is 224527. The next prime is 224563. The reversal of 224533 is 335422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 335422 = 2 ⋅167711.

It is a cyclic number.

It is not a de Polignac number, because 224533 - 2⁵ = 224501 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹³ + 5⁵ + 4⁷ + 3⁹ + 3¹¹ .

It is a Duffinian number.

224533 is a lucky number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 224533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224513) 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, 3591 + ... + 3652.

It is an arithmetic number, because the mean of its divisors is an integer number (57952).

2²²⁴⁵³³ is an apocalyptic number.

It is an amenable number.

224533 is a deficient number, since it is larger than the sum of its proper divisors (7275).

224533 is an equidigital number, since it uses as much as digits as its factorization.

224533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274.

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

The square root of 224533 is about 473.8491321085. The cubic root of 224533 is about 60.7799109820.

Adding to 224533 its reverse (335422), we get a palindrome (559955).

Subtracting 224533 from its reverse (335422), we obtain a square (110889 = 333²).

It can be divided in two parts, 2245 and 33, that added together give a triangular number (2278 = T₆₇).

The spelling of 224533 in words is "two hundred twenty-four thousand, five hundred thirty-three".