549149855 has 8 divisors (see below), whose sum is σ = 668261664. Its totient is φ = 433132000.

The previous prime is 549149789. The next prime is 549149869. The reversal of 549149855 is 558941945.

549149855 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 549149855 - 2²⁴ = 532372639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773096 + ... + 773805.

It is an arithmetic number, because the mean of its divisors is an integer number (83532708).

Almost surely, 2^549149855 is an apocalyptic number.

549149855 is a deficient number, since it is larger than the sum of its proper divisors (119111809).

549149855 is a wasteful number, since it uses less digits than its factorization.

549149855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546977.

The product of its digits is 1296000, while the sum is 50.

The square root of 549149855 is about 23433.9466373038. The cubic root of 549149855 is about 818.8989063122.

The spelling of 549149855 in words is "five hundred forty-nine million, one hundred forty-nine thousand, eight hundred fifty-five".