548666 has 4 divisors (see below), whose sum is σ = 823002. Its totient is φ = 274332.

The previous prime is 548657. The next prime is 548671. The reversal of 548666 is 666845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 229441 = 565^2 + 479^2 .

548666 is a modest number, since divided by 666 gives 548 as remainder.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 137165 + ... + 137168.

2⁵⁴⁸⁶⁶⁶ is an apocalyptic number.

548666 is a deficient number, since it is larger than the sum of its proper divisors (274336).

548666 is a wasteful number, since it uses less digits than its factorization.

548666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274335.

The product of its digits is 34560, while the sum is 35.

The square root of 548666 is about 740.7199200778. The cubic root of 548666 is about 81.8658325497.

It can be divided in two parts, 54866 and 6, that added together give a cube (54872 = 38³).

The spelling of 548666 in words is "five hundred forty-eight thousand, six hundred sixty-six".