548856089 has 2 divisors, whose sum is σ = 548856090. Its totient is φ = 548856088.

The previous prime is 548856041. The next prime is 548856149. The reversal of 548856089 is 980658845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 543262864 + 5593225 = 23308^2 + 2365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548856089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 548856089.

It is not a weakly prime, because it can be changed into another prime (548856389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274428044 + 274428045.

It is an arithmetic number, because the mean of its divisors is an integer number (274428045).

Almost surely, 2^548856089 is an apocalyptic number.

It is an amenable number.

548856089 is a deficient number, since it is larger than the sum of its proper divisors (1).

548856089 is an equidigital number, since it uses as much as digits as its factorization.

548856089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The square root of 548856089 is about 23427.6778405372. The cubic root of 548856089 is about 818.7528577955.

The spelling of 548856089 in words is "five hundred forty-eight million, eight hundred fifty-six thousand, eighty-nine".