22500223 has 4 divisors (see below), whose sum is σ = 23023528. Its totient is φ = 21976920.

The previous prime is 22500211. The next prime is 22500229. The reversal of 22500223 is 32200522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32200522 = 2 ⋅16100261.

It is a cyclic number.

It is not a de Polignac number, because 22500223 - 2¹³ = 22492031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22500197 and 22500206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22500229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261588 + ... + 261673.

It is an arithmetic number, because the mean of its divisors is an integer number (5755882).

Almost surely, 2^22500223 is an apocalyptic number.

22500223 is a deficient number, since it is larger than the sum of its proper divisors (523305).

22500223 is an equidigital number, since it uses as much as digits as its factorization.

22500223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523304.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22500223 is about 4743.4399964583. The cubic root of 22500223 is about 282.3117413325.

Adding to 22500223 its reverse (32200522), we get a palindrome (54700745).

The spelling of 22500223 in words is "twenty-two million, five hundred thousand, two hundred twenty-three".