550454665 has 4 divisors (see below), whose sum is σ = 660545604. Its totient is φ = 440363728.

The previous prime is 550454659. The next prime is 550454669. The reversal of 550454665 is 566454055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111007296 + 439447369 = 10536^2 + 20963^2 .

It is a cyclic number.

It is not a de Polignac number, because 550454665 - 2⁹ = 550454153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550454669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55045462 + ... + 55045471.

It is an arithmetic number, because the mean of its divisors is an integer number (165136401).

Almost surely, 2^550454665 is an apocalyptic number.

It is an amenable number.

550454665 is a deficient number, since it is larger than the sum of its proper divisors (110090939).

550454665 is a wasteful number, since it uses less digits than its factorization.

550454665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110090938.

The product of its (nonzero) digits is 360000, while the sum is 40.

The square root of 550454665 is about 23461.7702870009. The cubic root of 550454665 is about 819.5469761182.

The spelling of 550454665 in words is "five hundred fifty million, four hundred fifty-four thousand, six hundred sixty-five".