548863281 has 12 divisors (see below), whose sum is σ = 796095300. Its totient is φ = 364389120.

The previous prime is 548863229. The next prime is 548863297. The reversal of 548863281 is 182368845.

548863281 is a `hidden beast` number, since 5 + 4 + 8 + 8 + 632 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 440370225 + 108493056 = 20985^2 + 10416^2 .

It is not a de Polignac number, because 548863281 - 2¹⁰ = 548862257 is a prime.

It is a super-2 number, since 2×548863281² = 602501802460169922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (548863681) 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, 124356 + ... + 128693.

It is an arithmetic number, because the mean of its divisors is an integer number (66341275).

Almost surely, 2^548863281 is an apocalyptic number.

It is an amenable number.

548863281 is a deficient number, since it is larger than the sum of its proper divisors (247232019).

548863281 is a wasteful number, since it uses less digits than its factorization.

548863281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253296 (or 253293 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 548863281 is about 23427.8313336937. The cubic root of 548863281 is about 818.7564339879.

The spelling of 548863281 in words is "five hundred forty-eight million, eight hundred sixty-three thousand, two hundred eighty-one".