5485775821 has 2 divisors, whose sum is σ = 5485775822. Its totient is φ = 5485775820.

The previous prime is 5485775803. The next prime is 5485775833. The reversal of 5485775821 is 1285775845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4598331721 + 887444100 = 67811^2 + 29790^2 .

It is a cyclic number.

It is not a de Polignac number, because 5485775821 - 2¹⁹ = 5485251533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5485775891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2742887910 + 2742887911.

It is an arithmetic number, because the mean of its divisors is an integer number (2742887911).

Almost surely, 2^5485775821 is an apocalyptic number.

It is an amenable number.

5485775821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5485775821 is an equidigital number, since it uses as much as digits as its factorization.

5485775821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136000, while the sum is 52.

The square root of 5485775821 is about 74066.0233912960. The cubic root of 5485775821 is about 1763.6511476932.

The spelling of 5485775821 in words is "five billion, four hundred eighty-five million, seven hundred seventy-five thousand, eight hundred twenty-one".