516875641 has 2 divisors, whose sum is σ = 516875642. Its totient is φ = 516875640.

The previous prime is 516875549. The next prime is 516875647. The reversal of 516875641 is 146578615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514382400 + 2493241 = 22680^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 516875641 - 2⁹ = 516875129 is a prime.

It is not a weakly prime, because it can be changed into another prime (516875647) 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 as a sum of consecutive naturals, namely, 258437820 + 258437821.

It is an arithmetic number, because the mean of its divisors is an integer number (258437821).

Almost surely, 2^516875641 is an apocalyptic number.

It is an amenable number.

516875641 is a deficient number, since it is larger than the sum of its proper divisors (1).

516875641 is an equidigital number, since it uses as much as digits as its factorization.

516875641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 43.

The square root of 516875641 is about 22734.8991860531. The cubic root of 516875641 is about 802.5313780622.

The spelling of 516875641 in words is "five hundred sixteen million, eight hundred seventy-five thousand, six hundred forty-one".