550966865 has 8 divisors (see below), whose sum is σ = 669126528. Its totient is φ = 435462640.

The previous prime is 550966841. The next prime is 550966877. The reversal of 550966865 is 568669055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550966865 - 2¹⁴ = 550950481 is a prime.

It is a Duffinian number.

It is a Curzon 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, 663401 + ... + 664230.

It is an arithmetic number, because the mean of its divisors is an integer number (83640816).

Almost surely, 2^550966865 is an apocalyptic number.

It is an amenable number.

550966865 is a deficient number, since it is larger than the sum of its proper divisors (118159663).

550966865 is a wasteful number, since it uses less digits than its factorization.

550966865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327719.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The square root of 550966865 is about 23472.6833787703. The cubic root of 550966865 is about 819.8010944288.

The spelling of 550966865 in words is "five hundred fifty million, nine hundred sixty-six thousand, eight hundred sixty-five".