548787461 has 2 divisors, whose sum is σ = 548787462. Its totient is φ = 548787460.

The previous prime is 548787443. The next prime is 548787487. The reversal of 548787461 is 164787845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518427361 + 30360100 = 22769^2 + 5510^2 .

It is a cyclic number.

It is not a de Polignac number, because 548787461 - 2⁶ = 548787397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548787961) 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, 274393730 + 274393731.

It is an arithmetic number, because the mean of its divisors is an integer number (274393731).

Almost surely, 2^548787461 is an apocalyptic number.

It is an amenable number.

548787461 is a deficient number, since it is larger than the sum of its proper divisors (1).

548787461 is an equidigital number, since it uses as much as digits as its factorization.

548787461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1505280, while the sum is 50.

The square root of 548787461 is about 23426.2131169338. The cubic root of 548787461 is about 818.7187312340.

The spelling of 548787461 in words is "five hundred forty-eight million, seven hundred eighty-seven thousand, four hundred sixty-one".