551223233 has 16 divisors (see below), whose sum is σ = 609560640. Its totient is φ = 494299200.

The previous prime is 551223227. The next prime is 551223251. The reversal of 551223233 is 332322155.

It is a cyclic number.

It is not a de Polignac number, because 551223233 - 2⁴ = 551223217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551223203) 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 15 ways as a sum of consecutive naturals, for example, 315743 + ... + 317483.

It is an arithmetic number, because the mean of its divisors is an integer number (38097540).

Almost surely, 2^551223233 is an apocalyptic number.

It is an amenable number.

551223233 is a deficient number, since it is larger than the sum of its proper divisors (58337407).

551223233 is a wasteful number, since it uses less digits than its factorization.

551223233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128.

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

The square root of 551223233 is about 23478.1437298608. The cubic root of 551223233 is about 819.9282274084.

Adding to 551223233 its reverse (332322155), we get a palindrome (883545388).

The spelling of 551223233 in words is "five hundred fifty-one million, two hundred twenty-three thousand, two hundred thirty-three".