550610665 has 16 divisors (see below), whose sum is σ = 724548096. Its totient is φ = 398361600.

The previous prime is 550610663. The next prime is 550610677. The reversal of 550610665 is 566016055.

It is not a de Polignac number, because 550610665 - 2¹ = 550610663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550610665.

It is not an unprimeable number, because it can be changed into a prime (550610663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15321 + ... + 36550.

It is an arithmetic number, because the mean of its divisors is an integer number (45284256).

Almost surely, 2^550610665 is an apocalyptic number.

550610665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550610665 is a deficient number, since it is larger than the sum of its proper divisors (173937431).

550610665 is a wasteful number, since it uses less digits than its factorization.

550610665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52080.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 550610665 is about 23465.0946088014. The cubic root of 550610665 is about 819.6243892463.

The spelling of 550610665 in words is "five hundred fifty million, six hundred ten thousand, six hundred sixty-five".