516556099 has 2 divisors, whose sum is σ = 516556100. Its totient is φ = 516556098.

The previous prime is 516556093. The next prime is 516556111. The reversal of 516556099 is 990655615.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516556099 - 2⁹ = 516555587 is a prime.

It is not a weakly prime, because it can be changed into another prime (516556093) 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, 258278049 + 258278050.

It is an arithmetic number, because the mean of its divisors is an integer number (258278050).

Almost surely, 2^516556099 is an apocalyptic number.

516556099 is a deficient number, since it is larger than the sum of its proper divisors (1).

516556099 is an equidigital number, since it uses as much as digits as its factorization.

516556099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 516556099 is about 22727.8705337742. The cubic root of 516556099 is about 802.3659640985.

The spelling of 516556099 in words is "five hundred sixteen million, five hundred fifty-six thousand, ninety-nine".