550606665 has 64 divisors (see below), whose sum is σ = 1033814016. Its totient is φ = 245037312.

The previous prime is 550606631. The next prime is 550606741. The reversal of 550606665 is 566606055.

It is a happy number.

It is not a de Polignac number, because 550606665 - 2⁶ = 550606601 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 906792 + ... + 907398.

It is an arithmetic number, because the mean of its divisors is an integer number (16153344).

Almost surely, 2^550606665 is an apocalyptic number.

It is an amenable number.

550606665 is a deficient number, since it is larger than the sum of its proper divisors (483207351).

550606665 is a wasteful number, since it uses less digits than its factorization.

550606665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 550606665 is about 23465.0093756640. The cubic root of 550606665 is about 819.6224044770.

The spelling of 550606665 in words is "five hundred fifty million, six hundred six thousand, six hundred sixty-five".