516668597 has 4 divisors (see below), whose sum is σ = 525138636. Its totient is φ = 508198560.

The previous prime is 516668587. The next prime is 516668623. The reversal of 516668597 is 795866615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 795866615 = 5 ⋅159173323.

It can be written as a sum of positive squares in 2 ways, for example, as 77598481 + 439070116 = 8809^2 + 20954^2 .

It is a cyclic number.

It is not a de Polignac number, because 516668597 - 2⁶ = 516668533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516668507) 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 in 3 ways as a sum of consecutive naturals, for example, 4234928 + ... + 4235049.

It is an arithmetic number, because the mean of its divisors is an integer number (131284659).

Almost surely, 2^516668597 is an apocalyptic number.

It is an amenable number.

516668597 is a deficient number, since it is larger than the sum of its proper divisors (8470039).

516668597 is an equidigital number, since it uses as much as digits as its factorization.

516668597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470038.

The product of its digits is 2721600, while the sum is 53.

The square root of 516668597 is about 22730.3452899423. The cubic root of 516668597 is about 802.4242075397.

The spelling of 516668597 in words is "five hundred sixteen million, six hundred sixty-eight thousand, five hundred ninety-seven".