548066 has 4 divisors (see below), whose sum is σ = 822102. Its totient is φ = 274032.

The previous prime is 548059. The next prime is 548069. The reversal of 548066 is 660845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660845 = 5 ⋅132169.

It can be written as a sum of positive squares in only one way, i.e., 461041 + 87025 = 679^2 + 295^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (548069) by changing a digit.

548066 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137015 + ... + 137018.

2⁵⁴⁸⁰⁶⁶ is an apocalyptic number.

548066 is a deficient number, since it is larger than the sum of its proper divisors (274036).

548066 is a wasteful number, since it uses less digits than its factorization.

548066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274035.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 548066 is about 740.3147979069. The cubic root of 548066 is about 81.8359798916.

The spelling of 548066 in words is "five hundred forty-eight thousand, sixty-six".