556811233 has 16 divisors (see below), whose sum is σ = 621210240. Its totient is φ = 494812800.

The previous prime is 556811219. The next prime is 556811237. The reversal of 556811233 is 332118655.

It is a cyclic number.

It is not a de Polignac number, because 556811233 - 2¹³ = 556803041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556811237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109573 + ... + 114541.

It is an arithmetic number, because the mean of its divisors is an integer number (38825640).

Almost surely, 2^556811233 is an apocalyptic number.

It is an amenable number.

556811233 is a deficient number, since it is larger than the sum of its proper divisors (64399007).

556811233 is a wasteful number, since it uses less digits than its factorization.

556811233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208.

The product of its digits is 21600, while the sum is 34.

The square root of 556811233 is about 23596.8479462830. The cubic root of 556811233 is about 822.6895787787.

Adding to 556811233 its reverse (332118655), we get a palindrome (888929888).

The spelling of 556811233 in words is "five hundred fifty-six million, eight hundred eleven thousand, two hundred thirty-three".