550255433331 has 4 divisors (see below), whose sum is σ = 733673911112. Its totient is φ = 366836955552.

The previous prime is 550255433293. The next prime is 550255433363. The reversal of 550255433331 is 133334552055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550255433331 - 2³³ = 541665498739 is a prime.

It is a super-2 number, since 2×550255433331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550255433331.

It is not an unprimeable number, because it can be changed into a prime (550250433331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91709238886 + ... + 91709238891.

It is an arithmetic number, because the mean of its divisors is an integer number (183418477778).

Almost surely, 2^550255433331 is an apocalyptic number.

550255433331 is a deficient number, since it is larger than the sum of its proper divisors (183418477781).

550255433331 is a wasteful number, since it uses less digits than its factorization.

550255433331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183418477780.

The product of its (nonzero) digits is 405000, while the sum is 39.

Adding to 550255433331 its reverse (133334552055), we get a palindrome (683589985386).

The spelling of 550255433331 in words is "five hundred fifty billion, two hundred fifty-five million, four hundred thirty-three thousand, three hundred thirty-one".