516811157 has 2 divisors, whose sum is σ = 516811158. Its totient is φ = 516811156.

The previous prime is 516811121. The next prime is 516811171. The reversal of 516811157 is 751118615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476374276 + 40436881 = 21826^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 516811157 - 2¹² = 516807061 is a 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 (516811657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258405578 + 258405579.

It is an arithmetic number, because the mean of its divisors is an integer number (258405579).

Almost surely, 2^516811157 is an apocalyptic number.

It is an amenable number.

516811157 is a deficient number, since it is larger than the sum of its proper divisors (1).

516811157 is an equidigital number, since it uses as much as digits as its factorization.

516811157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 35.

The square root of 516811157 is about 22733.4809697063. The cubic root of 516811157 is about 802.4980027965.

The spelling of 516811157 in words is "five hundred sixteen million, eight hundred eleven thousand, one hundred fifty-seven".