548221104 has 180 divisors, whose sum is σ = 1647818640. Its totient is φ = 169908480.

The previous prime is 548221103. The next prime is 548221109. The reversal of 548221104 is 401122845.

548221104 is a `hidden beast` number, since 548 + 2 + 2 + 110 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548221103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7721389 + ... + 7721459.

It is an arithmetic number, because the mean of its divisors is an integer number (9154548).

Almost surely, 2^548221104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 548221104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823909320).

548221104 is an abundant number, since it is smaller than the sum of its proper divisors (1099597536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

548221104 is a wasteful number, since it uses less digits than its factorization.

548221104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 548221104 is about 23414.1218925673. The cubic root of 548221104 is about 818.4369909006.

Adding to 548221104 its reverse (401122845), we get a palindrome (949343949).

The spelling of 548221104 in words is "five hundred forty-eight million, two hundred twenty-one thousand, one hundred four".