516120791 has 2 divisors, whose sum is σ = 516120792. Its totient is φ = 516120790.

The previous prime is 516120779. The next prime is 516120811. The reversal of 516120791 is 197021615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516120791 - 2⁶ = 516120727 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516120091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258060395 + 258060396.

It is an arithmetic number, because the mean of its divisors is an integer number (258060396).

Almost surely, 2^516120791 is an apocalyptic number.

516120791 is a deficient number, since it is larger than the sum of its proper divisors (1).

516120791 is an equidigital number, since it uses as much as digits as its factorization.

516120791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 516120791 is about 22718.2919912567. The cubic root of 516120791 is about 802.1405129598.

It can be divided in two parts, 5161 and 20791, that added together give a palindrome (25952).

The spelling of 516120791 in words is "five hundred sixteen million, one hundred twenty thousand, seven hundred ninety-one".