549856799 has 4 divisors (see below), whose sum is σ = 553035336. Its totient is φ = 546678264.

The previous prime is 549856793. The next prime is 549856859. The reversal of 549856799 is 997658945.

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

It is a cyclic number.

It is not a de Polignac number, because 549856799 - 2¹² = 549852703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549856793) 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, 1589009 + ... + 1589354.

It is an arithmetic number, because the mean of its divisors is an integer number (138258834).

Almost surely, 2^549856799 is an apocalyptic number.

549856799 is a deficient number, since it is larger than the sum of its proper divisors (3178537).

549856799 is a wasteful number, since it uses less digits than its factorization.

549856799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178536.

The product of its digits is 24494400, while the sum is 62.

The square root of 549856799 is about 23449.0255447854. The cubic root of 549856799 is about 819.2501567767.

The spelling of 549856799 in words is "five hundred forty-nine million, eight hundred fifty-six thousand, seven hundred ninety-nine".