549865385 has 8 divisors (see below), whose sum is σ = 659975040. Its totient is φ = 439801264.

The previous prime is 549865373. The next prime is 549865417. The reversal of 549865385 is 583568945.

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

It is a cyclic number.

It is not a de Polignac number, because 549865385 - 2²⁴ = 533088169 is a prime.

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, 26894 + ... + 42696.

It is an arithmetic number, because the mean of its divisors is an integer number (82496880).

Almost surely, 2^549865385 is an apocalyptic number.

It is an amenable number.

549865385 is a deficient number, since it is larger than the sum of its proper divisors (110109655).

549865385 is a wasteful number, since it uses less digits than its factorization.

549865385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22767.

The product of its digits is 5184000, while the sum is 53.

The square root of 549865385 is about 23449.2086220410. The cubic root of 549865385 is about 819.2544209447.

The spelling of 549865385 in words is "five hundred forty-nine million, eight hundred sixty-five thousand, three hundred eighty-five".