533233221 has 4 divisors (see below), whose sum is σ = 710977632. Its totient is φ = 355488812.

The previous prime is 533233199. The next prime is 533233231. The reversal of 533233221 is 122332335.

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.

It is a cyclic number.

It is not a de Polignac number, because 533233221 - 2⁷ = 533233093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 533233191 and 533233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533233231) 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, 88872201 + ... + 88872206.

It is an arithmetic number, because the mean of its divisors is an integer number (177744408).

Almost surely, 2^533233221 is an apocalyptic number.

It is an amenable number.

533233221 is a deficient number, since it is larger than the sum of its proper divisors (177744411).

533233221 is a wasteful number, since it uses less digits than its factorization.

533233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177744410.

The product of its digits is 3240, while the sum is 24.

The square root of 533233221 is about 23091.8431702625. The cubic root of 533233221 is about 810.9095209484.

Adding to 533233221 its reverse (122332335), we get a palindrome (655565556).

The spelling of 533233221 in words is "five hundred thirty-three million, two hundred thirty-three thousand, two hundred twenty-one".