512220017 has 2 divisors, whose sum is σ = 512220018. Its totient is φ = 512220016.

The previous prime is 512219969. The next prime is 512220041. The reversal of 512220017 is 710022215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268828816 + 243391201 = 16396^2 + 15601^2 .

It is a cyclic number.

It is not a de Polignac number, because 512220017 - 2²⁸ = 243784561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (512225017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256110008 + 256110009.

It is an arithmetic number, because the mean of its divisors is an integer number (256110009).

Almost surely, 2^512220017 is an apocalyptic number.

It is an amenable number.

512220017 is a deficient number, since it is larger than the sum of its proper divisors (1).

512220017 is an equidigital number, since it uses as much as digits as its factorization.

512220017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 512220017 is about 22632.2782105558. The cubic root of 512220017 is about 800.1145757772.

The spelling of 512220017 in words is "five hundred twelve million, two hundred twenty thousand, seventeen".