516550061 has 2 divisors, whose sum is σ = 516550062. Its totient is φ = 516550060.

The previous prime is 516550051. The next prime is 516550087. The reversal of 516550061 is 160055615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513928900 + 2621161 = 22670^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 516550061 - 2¹⁸ = 516287917 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 (516550051) 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, 258275030 + 258275031.

It is an arithmetic number, because the mean of its divisors is an integer number (258275031).

Almost surely, 2^516550061 is an apocalyptic number.

It is an amenable number.

516550061 is a deficient number, since it is larger than the sum of its proper divisors (1).

516550061 is an equidigital number, since it uses as much as digits as its factorization.

516550061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 516550061 is about 22727.7377008800. The cubic root of 516550061 is about 802.3628378136.

The spelling of 516550061 in words is "five hundred sixteen million, five hundred fifty thousand, sixty-one".