548278 has 4 divisors (see below), whose sum is σ = 822420. Its totient is φ = 274138.

The previous prime is 548263. The next prime is 548291. The reversal of 548278 is 872845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 872845 = 5 ⋅174569.

It is a congruent number.

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, 137068 + ... + 137071.

It is an arithmetic number, because the mean of its divisors is an integer number (205605).

2⁵⁴⁸²⁷⁸ is an apocalyptic number.

548278 is a deficient number, since it is larger than the sum of its proper divisors (274142).

548278 is a wasteful number, since it uses less digits than its factorization.

548278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274141.

The product of its digits is 17920, while the sum is 34.

The square root of 548278 is about 740.4579663965. The cubic root of 548278 is about 81.8465303188.

The spelling of 548278 in words is "five hundred forty-eight thousand, two hundred seventy-eight".