550990066 has 16 divisors (see below), whose sum is σ = 902583648. Its totient is φ = 250182400.

The previous prime is 550989991. The next prime is 550990079. The reversal of 550990066 is 660099055.

550990066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8466 + ... + 34258.

It is an arithmetic number, because the mean of its divisors is an integer number (56411478).

Almost surely, 2^550990066 is an apocalyptic number.

550990066 is a deficient number, since it is larger than the sum of its proper divisors (351593582).

550990066 is a wasteful number, since it uses less digits than its factorization.

550990066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26777.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 550990066 is about 23473.1775863431. The cubic root of 550990066 is about 819.8126014355.

The spelling of 550990066 in words is "five hundred fifty million, nine hundred ninety thousand, sixty-six".