550542566 has 16 divisors (see below), whose sum is σ = 946515456. Its totient is φ = 235264776.

The previous prime is 550542557. The next prime is 550542581. The reversal of 550542566 is 665245055.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 51806 + ... + 61521.

It is an arithmetic number, because the mean of its divisors is an integer number (59157216).

Almost surely, 2^550542566 is an apocalyptic number.

550542566 is a deficient number, since it is larger than the sum of its proper divisors (395972890).

550542566 is a wasteful number, since it uses less digits than its factorization.

550542566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113683.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 550542566 is about 23463.6434937117. The cubic root of 550542566 is about 819.5905977332.

The spelling of 550542566 in words is "five hundred fifty million, five hundred forty-two thousand, five hundred sixty-six".