553223321 has 4 divisors (see below), whose sum is σ = 632255232. Its totient is φ = 474191412.

The previous prime is 553223309. The next prime is 553223351. The reversal of 553223321 is 123322355.

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 553223321 - 2¹⁸ = 552961177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553223351) 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, 39515945 + ... + 39515958.

It is an arithmetic number, because the mean of its divisors is an integer number (158063808).

Almost surely, 2^553223321 is an apocalyptic number.

It is an amenable number.

553223321 is a deficient number, since it is larger than the sum of its proper divisors (79031911).

553223321 is an equidigital number, since it uses as much as digits as its factorization.

553223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79031910.

The product of its digits is 5400, while the sum is 26.

The square root of 553223321 is about 23520.6998407785. The cubic root of 553223321 is about 820.9187209330.

Adding to 553223321 its reverse (123322355), we get a palindrome (676545676).

The spelling of 553223321 in words is "five hundred fifty-three million, two hundred twenty-three thousand, three hundred twenty-one".