548683813 has 8 divisors (see below), whose sum is σ = 556037496. Its totient is φ = 541368000.

The previous prime is 548683801. The next prime is 548683819. The reversal of 548683813 is 318386845.

It can be written as a sum of positive squares in 4 ways, for example, as 361076004 + 187607809 = 19002^2 + 13697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 548683813 - 2²⁹ = 11812901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (548683819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20323 + ... + 38863.

It is an arithmetic number, because the mean of its divisors is an integer number (69504687).

Almost surely, 2^548683813 is an apocalyptic number.

It is an amenable number.

548683813 is a deficient number, since it is larger than the sum of its proper divisors (7353683).

548683813 is a wasteful number, since it uses less digits than its factorization.

548683813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18935.

The product of its digits is 552960, while the sum is 46.

The square root of 548683813 is about 23424.0007897882. Note that the first 3 decimals coincide. The cubic root of 548683813 is about 818.6671849263.

The spelling of 548683813 in words is "five hundred forty-eight million, six hundred eighty-three thousand, eight hundred thirteen".