516300649 has 2 divisors, whose sum is σ = 516300650. Its totient is φ = 516300648.

The previous prime is 516300647. The next prime is 516300667. The reversal of 516300649 is 946003615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466344025 + 49956624 = 21595^2 + 7068^2 .

It is a cyclic number.

It is not a de Polignac number, because 516300649 - 2¹ = 516300647 is a prime.

Together with 516300647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (516300641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258150324 + 258150325.

It is an arithmetic number, because the mean of its divisors is an integer number (258150325).

Almost surely, 2^516300649 is an apocalyptic number.

It is an amenable number.

516300649 is a deficient number, since it is larger than the sum of its proper divisors (1).

516300649 is an equidigital number, since it uses as much as digits as its factorization.

516300649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 516300649 is about 22722.2500866441. The cubic root of 516300649 is about 802.2336788979.

The spelling of 516300649 in words is "five hundred sixteen million, three hundred thousand, six hundred forty-nine".