516550606493 has 2 divisors, whose sum is σ = 516550606494. Its totient is φ = 516550606492.

The previous prime is 516550606487. The next prime is 516550606519. The reversal of 516550606493 is 394606055615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265551610489 + 250998996004 = 515317^2 + 500998^2 .

It is a cyclic number.

It is not a de Polignac number, because 516550606493 - 2⁴ = 516550606477 is a prime.

It is a super-2 number, since 2×516550606493² (a number of 24 digits) contains 22 as substring.

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 (516550606463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258275303246 + 258275303247.

It is an arithmetic number, because the mean of its divisors is an integer number (258275303247).

Almost surely, 2^516550606493 is an apocalyptic number.

It is an amenable number.

516550606493 is a deficient number, since it is larger than the sum of its proper divisors (1).

516550606493 is an equidigital number, since it uses as much as digits as its factorization.

516550606493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 516550606493 in words is "five hundred sixteen billion, five hundred fifty million, six hundred six thousand, four hundred ninety-three".