16222533 has 4 divisors (see below), whose sum is σ = 21630048. Its totient is φ = 10815020.

The previous prime is 16222529. The next prime is 16222541. The reversal of 16222533 is 33522261.

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: 33522261 = 3 ⋅11174087.

It is a cyclic number.

It is not a de Polignac number, because 16222533 - 2² = 16222529 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16222543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2703753 + ... + 2703758.

It is an arithmetic number, because the mean of its divisors is an integer number (5407512).

Almost surely, 2^16222533 is an apocalyptic number.

It is an amenable number.

16222533 is a deficient number, since it is larger than the sum of its proper divisors (5407515).

16222533 is an equidigital number, since it uses as much as digits as its factorization.

16222533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407514.

The product of its digits is 2160, while the sum is 24.

The square root of 16222533 is about 4027.7205712413. The cubic root of 16222533 is about 253.1470604763.

Adding to 16222533 its reverse (33522261), we get a palindrome (49744794).

The spelling of 16222533 in words is "sixteen million, two hundred twenty-two thousand, five hundred thirty-three".