548665 has 16 divisors (see below), whose sum is σ = 741888. Its totient is φ = 386496.

The previous prime is 548657. The next prime is 548671. The reversal of 548665 is 566845.

It is a cyclic number.

It is not a de Polignac number, because 548665 - 2³ = 548657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 548665.

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 in 15 ways as a sum of consecutive naturals, for example, 1312 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (46368).

2⁵⁴⁸⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

548665 is a deficient number, since it is larger than the sum of its proper divisors (193223).

548665 is a wasteful number, since it uses less digits than its factorization.

548665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its digits is 28800, while the sum is 34.

The square root of 548665 is about 740.7192450585. The cubic root of 548665 is about 81.8657828134.

It can be divided in two parts, 5486 and 65, that multiplied together give a triangular number (356590 = T₈₄₄).

The spelling of 548665 in words is "five hundred forty-eight thousand, six hundred sixty-five".