548020209 has 16 divisors (see below), whose sum is σ = 818665920. Its totient is φ = 323156160.

The previous prime is 548020183. The next prime is 548020217. The reversal of 548020209 is 902020845.

548020209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 548020209 - 2⁹ = 548019697 is a prime.

It is a super-2 number, since 2×548020209² = 600652298944807362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (548020229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223194 + ... + 225635.

It is an arithmetic number, because the mean of its divisors is an integer number (51166620).

Almost surely, 2^548020209 is an apocalyptic number.

It is an amenable number.

548020209 is a deficient number, since it is larger than the sum of its proper divisors (270645711).

548020209 is a wasteful number, since it uses less digits than its factorization.

548020209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448880.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 548020209 is about 23409.8314603074. The cubic root of 548020209 is about 818.3370069185.

The spelling of 548020209 in words is "five hundred forty-eight million, twenty thousand, two hundred nine".