548411081 has 2 divisors, whose sum is σ = 548411082. Its totient is φ = 548411080.

The previous prime is 548411063. The next prime is 548411089. The reversal of 548411081 is 180114845.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412455481 + 135955600 = 20309^2 + 11660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548411081 is a prime.

It is a super-3 number, since 3×548411081³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (548411089) by changing a digit.

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 as a sum of consecutive naturals, namely, 274205540 + 274205541.

It is an arithmetic number, because the mean of its divisors is an integer number (274205541).

Almost surely, 2^548411081 is an apocalyptic number.

It is an amenable number.

548411081 is a deficient number, since it is larger than the sum of its proper divisors (1).

548411081 is an equidigital number, since it uses as much as digits as its factorization.

548411081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 548411081 is about 23418.1784304416. The cubic root of 548411081 is about 818.5315186051.

The spelling of 548411081 in words is "five hundred forty-eight million, four hundred eleven thousand, eighty-one".