512666213 has 2 divisors, whose sum is σ = 512666214. Its totient is φ = 512666212.

The previous prime is 512666201. The next prime is 512666279. The reversal of 512666213 is 312666215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297838564 + 214827649 = 17258^2 + 14657^2 .

It is a cyclic number.

It is not a de Polignac number, because 512666213 - 2²⁰ = 511617637 is a prime.

It is a super-2 number, since 2×512666213² = 525653291903522738, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512666213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512665213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256333106 + 256333107.

It is an arithmetic number, because the mean of its divisors is an integer number (256333107).

Almost surely, 2^512666213 is an apocalyptic number.

It is an amenable number.

512666213 is a deficient number, since it is larger than the sum of its proper divisors (1).

512666213 is an equidigital number, since it uses as much as digits as its factorization.

512666213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 512666213 is about 22642.1335787951. The cubic root of 512666213 is about 800.3468355471.

The spelling of 512666213 in words is "five hundred twelve million, six hundred sixty-six thousand, two hundred thirteen".