516555097 has 2 divisors, whose sum is σ = 516555098. Its totient is φ = 516555096.

The previous prime is 516555049. The next prime is 516555103. The reversal of 516555097 is 790555615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413552896 + 103002201 = 20336^2 + 10149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516555097 is a prime.

It is not a weakly prime, because it can be changed into another prime (516555007) 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, 258277548 + 258277549.

It is an arithmetic number, because the mean of its divisors is an integer number (258277549).

Almost surely, 2^516555097 is an apocalyptic number.

It is an amenable number.

516555097 is a deficient number, since it is larger than the sum of its proper divisors (1).

516555097 is an equidigital number, since it uses as much as digits as its factorization.

516555097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236250, while the sum is 43.

The square root of 516555097 is about 22727.8484903433. The cubic root of 516555097 is about 802.3654452964.

The spelling of 516555097 in words is "five hundred sixteen million, five hundred fifty-five thousand, ninety-seven".