516524221049 has 2 divisors, whose sum is σ = 516524221050. Its totient is φ = 516524221048.

The previous prime is 516524221013. The next prime is 516524221123. The reversal of 516524221049 is 940122425615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484610899600 + 31913321449 = 696140^2 + 178643^2 .

It is a cyclic number.

It is not a de Polignac number, because 516524221049 - 2³⁶ = 447804744313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 516524220997 and 516524221015.

It is not a weakly prime, because it can be changed into another prime (516524221949) 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, 258262110524 + 258262110525.

It is an arithmetic number, because the mean of its divisors is an integer number (258262110525).

Almost surely, 2^516524221049 is an apocalyptic number.

It is an amenable number.

516524221049 is a deficient number, since it is larger than the sum of its proper divisors (1).

516524221049 is an equidigital number, since it uses as much as digits as its factorization.

516524221049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 516524221049 in words is "five hundred sixteen billion, five hundred twenty-four million, two hundred twenty-one thousand, forty-nine".