549330665 has 8 divisors (see below), whose sum is σ = 709904328. Its totient is φ = 405659520.

The previous prime is 549330659. The next prime is 549330697. The reversal of 549330665 is 566033945.

It can be written as a sum of positive squares in 4 ways, for example, as 49182169 + 500148496 = 7013^2 + 22364^2 .

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

It is not a de Polignac number, because 549330665 - 2¹⁸ = 549068521 is a prime.

It is a Duffinian number.

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, 4225556 + ... + 4225685.

It is an arithmetic number, because the mean of its divisors is an integer number (88738041).

Almost surely, 2^549330665 is an apocalyptic number.

It is an amenable number.

549330665 is a deficient number, since it is larger than the sum of its proper divisors (160573663).

549330665 is a wasteful number, since it uses less digits than its factorization.

549330665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8451259.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 549330665 is about 23437.8041846927. The cubic root of 549330665 is about 818.9887718031.

The spelling of 549330665 in words is "five hundred forty-nine million, three hundred thirty thousand, six hundred sixty-five".