516401297 has 2 divisors, whose sum is σ = 516401298. Its totient is φ = 516401296.

The previous prime is 516401269. The next prime is 516401321. The reversal of 516401297 is 792104615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506970256 + 9431041 = 22516^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 516401297 - 2²⁶ = 449292433 is a prime.

It is not a weakly prime, because it can be changed into another prime (516401257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258200648 + 258200649.

It is an arithmetic number, because the mean of its divisors is an integer number (258200649).

Almost surely, 2^516401297 is an apocalyptic number.

It is an amenable number.

516401297 is a deficient number, since it is larger than the sum of its proper divisors (1).

516401297 is an equidigital number, since it uses as much as digits as its factorization.

516401297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 516401297 is about 22724.4647241690. The cubic root of 516401297 is about 802.2858048374.

The spelling of 516401297 in words is "five hundred sixteen million, four hundred one thousand, two hundred ninety-seven".