550875816 has 160 divisors (see below), whose sum is σ = 1643954400. Its totient is φ = 171849600.

The previous prime is 550875781. The next prime is 550875817. The reversal of 550875816 is 618578055.

550875816 is a `hidden beast` number, since 550 + 87 + 5 + 8 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (550875817) 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 39 ways as a sum of consecutive naturals, for example, 1243291 + ... + 1243733.

It is an arithmetic number, because the mean of its divisors is an integer number (10274715).

Almost surely, 2^550875816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550875816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821977200).

550875816 is an abundant number, since it is smaller than the sum of its proper divisors (1093078584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550875816 is a wasteful number, since it uses less digits than its factorization.

550875816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The square root of 550875816 is about 23470.7438314170. The cubic root of 550875816 is about 819.7559337083.

The spelling of 550875816 in words is "five hundred fifty million, eight hundred seventy-five thousand, eight hundred sixteen".