512872517 has 2 divisors, whose sum is σ = 512872518. Its totient is φ = 512872516.

The previous prime is 512872501. The next prime is 512872519. The reversal of 512872517 is 715278215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511166881 + 1705636 = 22609^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 512872517 - 2⁴ = 512872501 is a prime.

Together with 512872519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512872519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256436258 + 256436259.

It is an arithmetic number, because the mean of its divisors is an integer number (256436259).

Almost surely, 2^512872517 is an apocalyptic number.

It is an amenable number.

512872517 is a deficient number, since it is larger than the sum of its proper divisors (1).

512872517 is an equidigital number, since it uses as much as digits as its factorization.

512872517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39200, while the sum is 38.

The square root of 512872517 is about 22646.6888749768. The cubic root of 512872517 is about 800.4541780416.

The spelling of 512872517 in words is "five hundred twelve million, eight hundred seventy-two thousand, five hundred seventeen".