511166497 has 2 divisors, whose sum is σ = 511166498. Its totient is φ = 511166496.

The previous prime is 511166477. The next prime is 511166549. The reversal of 511166497 is 794661115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427827856 + 83338641 = 20684^2 + 9129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511166497 is a prime.

It is a super-2 number, since 2×511166497² = 522582375310502018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511166437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255583248 + 255583249.

It is an arithmetic number, because the mean of its divisors is an integer number (255583249).

Almost surely, 2^511166497 is an apocalyptic number.

It is an amenable number.

511166497 is a deficient number, since it is larger than the sum of its proper divisors (1).

511166497 is an equidigital number, since it uses as much as digits as its factorization.

511166497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 511166497 is about 22608.9915078050. The cubic root of 511166497 is about 799.5656480698.

The spelling of 511166497 in words is "five hundred eleven million, one hundred sixty-six thousand, four hundred ninety-seven".