18050223 has 4 divisors (see below), whose sum is σ = 24066968. Its totient is φ = 12033480.

The previous prime is 18050203. The next prime is 18050233. The reversal of 18050223 is 32205081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32205081 = 3 ⋅10735027.

It is not a de Polignac number, because 18050223 - 2¹⁴ = 18033839 is a prime.

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 18050223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050203) 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, 3008368 + ... + 3008373.

It is an arithmetic number, because the mean of its divisors is an integer number (6016742).

Almost surely, 2^18050223 is an apocalyptic number.

18050223 is a deficient number, since it is larger than the sum of its proper divisors (6016745).

18050223 is an equidigital number, since it uses as much as digits as its factorization.

18050223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016744.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 18050223 is about 4248.5554015453. Note that the first 3 decimals coincide. The cubic root of 18050223 is about 262.3176565860.

It can be divided in two parts, 180 and 50223, that added together give a triangular number (50403 = T₃₁₇).

The spelling of 18050223 in words is "eighteen million, fifty thousand, two hundred twenty-three".