548865 has 12 divisors (see below), whose sum is σ = 951444. Its totient is φ = 292704.

The previous prime is 548861. The next prime is 548869. The reversal of 548865 is 568845.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (548861) and next prime (548869).

It can be written as a sum of positive squares in 2 ways, for example, as 294849 + 254016 = 543^2 + 504^2 .

It is not a de Polignac number, because 548865 - 2² = 548861 is a prime.

548865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (548861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6054 + ... + 6143.

It is an arithmetic number, because the mean of its divisors is an integer number (79287).

It is a Proth number, since it is equal to 67 ⋅ 2¹³ + 1 and 67 < 2¹³.

2⁵⁴⁸⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

548865 is a deficient number, since it is larger than the sum of its proper divisors (402579).

548865 is a wasteful number, since it uses less digits than its factorization.

548865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208 (or 12205 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 548865 is about 740.8542366755. The cubic root of 548865 is about 81.8757288749.

The spelling of 548865 in words is "five hundred forty-eight thousand, eight hundred sixty-five".