548445 has 8 divisors (see below), whose sum is σ = 877536. Its totient is φ = 292496.

The previous prime is 548441. The next prime is 548453. The reversal of 548445 is 544845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 548445 - 2² = 548441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548441) 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 7 ways as a sum of consecutive naturals, for example, 18267 + ... + 18296.

It is an arithmetic number, because the mean of its divisors is an integer number (109692).

2⁵⁴⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

548445 is a deficient number, since it is larger than the sum of its proper divisors (329091).

548445 is a wasteful number, since it uses less digits than its factorization.

548445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36571.

The product of its digits is 12800, while the sum is 30.

The square root of 548445 is about 740.5707258595. The cubic root of 548445 is about 81.8548393537.

Subtracting from 548445 its reverse (544845), we obtain a square (3600 = 60²).

The spelling of 548445 in words is "five hundred forty-eight thousand, four hundred forty-five".