516005056901 has 2 divisors, whose sum is σ = 516005056902. Its totient is φ = 516005056900.

The previous prime is 516005056781. The next prime is 516005056907. The reversal of 516005056901 is 109650500615.

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., 307703184100 + 208301872801 = 554710^2 + 456401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516005056901 is a prime.

It is a super-2 number, since 2×516005056901² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516005056907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258002528450 + 258002528451.

It is an arithmetic number, because the mean of its divisors is an integer number (258002528451).

Almost surely, 2^516005056901 is an apocalyptic number.

It is an amenable number.

516005056901 is a deficient number, since it is larger than the sum of its proper divisors (1).

516005056901 is an equidigital number, since it uses as much as digits as its factorization.

516005056901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 516005056901 in words is "five hundred sixteen billion, five million, fifty-six thousand, nine hundred one".