512262217 has 2 divisors, whose sum is σ = 512262218. Its totient is φ = 512262216.

The previous prime is 512262209. The next prime is 512262221. The reversal of 512262217 is 712262215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430106121 + 82156096 = 20739^2 + 9064^2 .

It is a cyclic number.

It is not a de Polignac number, because 512262217 - 2³ = 512262209 is a prime.

It is not a weakly prime, because it can be changed into another prime (512262617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256131108 + 256131109.

It is an arithmetic number, because the mean of its divisors is an integer number (256131109).

Almost surely, 2^512262217 is an apocalyptic number.

It is an amenable number.

512262217 is a deficient number, since it is larger than the sum of its proper divisors (1).

512262217 is an equidigital number, since it uses as much as digits as its factorization.

512262217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 512262217 is about 22633.2104881300. The cubic root of 512262217 is about 800.1365480461.

The spelling of 512262217 in words is "five hundred twelve million, two hundred sixty-two thousand, two hundred seventeen".