550642311 has 12 divisors (see below), whose sum is σ = 798399888. Its totient is φ = 365697504.

The previous prime is 550642283. The next prime is 550642321. The reversal of 550642311 is 113246055.

550642311 is a `hidden beast` number, since 5 + 5 + 0 + 642 + 3 + 11 = 666.

It is not a de Polignac number, because 550642311 - 2²¹ = 548545159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550642321) 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 11 ways as a sum of consecutive naturals, for example, 113950 + ... + 118683.

It is an arithmetic number, because the mean of its divisors is an integer number (66533324).

Almost surely, 2^550642311 is an apocalyptic number.

550642311 is a deficient number, since it is larger than the sum of its proper divisors (247757577).

550642311 is a wasteful number, since it uses less digits than its factorization.

550642311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232902 (or 232899 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 550642311 is about 23465.7689198543. The cubic root of 550642311 is about 819.6400914101.

Adding to 550642311 its reverse (113246055), we get a palindrome (663888366).

It can be divided in two parts, 55064 and 2311, that added together give a palindrome (57375).

The spelling of 550642311 in words is "five hundred fifty million, six hundred forty-two thousand, three hundred eleven".