548605 has 4 divisors (see below), whose sum is σ = 658332. Its totient is φ = 438880.

The previous prime is 548591. The next prime is 548623. The reversal of 548605 is 506845.

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

It can be written as a sum of positive squares in 2 ways, for example, as 343396 + 205209 = 586^2 + 453^2 .

It is not a de Polignac number, because 548605 - 2¹⁹ = 24317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 54856 + ... + 54865.

It is an arithmetic number, because the mean of its divisors is an integer number (164583).

2⁵⁴⁸⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

548605 is a deficient number, since it is larger than the sum of its proper divisors (109727).

548605 is a wasteful number, since it uses less digits than its factorization.

548605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109726.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 548605 is about 740.6787427758. The cubic root of 548605 is about 81.8627985236.

The spelling of 548605 in words is "five hundred forty-eight thousand, six hundred five".