550687068 has 72 divisors (see below), whose sum is σ = 1486412928. Its totient is φ = 171487008.

The previous prime is 550687057. The next prime is 550687073. The reversal of 550687068 is 860786055.

550687068 is a `hidden beast` number, since 5 + 506 + 87 + 0 + 68 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27871 + ... + 43337.

It is an arithmetic number, because the mean of its divisors is an integer number (20644624).

Almost surely, 2^550687068 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 550687068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743206464).

550687068 is an abundant number, since it is smaller than the sum of its proper divisors (935725860).

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

550687068 is a wasteful number, since it uses less digits than its factorization.

550687068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15543 (or 15538 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 550687068 is about 23466.7225662213. The cubic root of 550687068 is about 819.6622979841.

The spelling of 550687068 in words is "five hundred fifty million, six hundred eighty-seven thousand, sixty-eight".