548549 has 4 divisors (see below), whose sum is σ = 577440. Its totient is φ = 519660.

The previous prime is 548543. The next prime is 548557. The reversal of 548549 is 945845.

548549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 945845 = 5 ⋅189169.

It is a cyclic number.

It is not a de Polignac number, because 548549 - 2⁴ = 548533 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14417 + ... + 14454.

It is an arithmetic number, because the mean of its divisors is an integer number (144360).

2⁵⁴⁸⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

548549 is a deficient number, since it is larger than the sum of its proper divisors (28891).

548549 is a wasteful number, since it uses less digits than its factorization.

548549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28890.

The product of its digits is 28800, while the sum is 35.

The square root of 548549 is about 740.6409386471. The cubic root of 548549 is about 81.8600129902.

The spelling of 548549 in words is "five hundred forty-eight thousand, five hundred forty-nine".