549848539221 has 32 divisors (see below), whose sum is σ = 784471419648. Its totient is φ = 341724303360.

The previous prime is 549848539213. The next prime is 549848539249. The reversal of 549848539221 is 122935848945.

It is not a de Polignac number, because 549848539221 - 2³ = 549848539213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549848532221) 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 31 ways as a sum of consecutive naturals, for example, 2664465 + ... + 2863401.

It is an arithmetic number, because the mean of its divisors is an integer number (24514731864).

Almost surely, 2^549848539221 is an apocalyptic number.

It is an amenable number.

549848539221 is a deficient number, since it is larger than the sum of its proper divisors (234622880427).

549848539221 is a wasteful number, since it uses less digits than its factorization.

549848539221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199981.

The product of its digits is 24883200, while the sum is 60.

The spelling of 549848539221 in words is "five hundred forty-nine billion, eight hundred forty-eight million, five hundred thirty-nine thousand, two hundred twenty-one".