517425017 has 4 divisors (see below), whose sum is σ = 518547876. Its totient is φ = 516302160.

The previous prime is 517425001. The next prime is 517425037. The reversal of 517425017 is 710524715.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109223401 + 408201616 = 10451^2 + 20204^2 .

It is a cyclic number.

It is not a de Polignac number, because 517425017 - 2⁴ = 517425001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517425037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560738 + ... + 561659.

It is an arithmetic number, because the mean of its divisors is an integer number (129636969).

Almost surely, 2^517425017 is an apocalyptic number.

It is an amenable number.

517425017 is a deficient number, since it is larger than the sum of its proper divisors (1122859).

517425017 is a wasteful number, since it uses less digits than its factorization.

517425017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122858.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 517425017 is about 22746.9781949164. The cubic root of 517425017 is about 802.8156084979.

The spelling of 517425017 in words is "five hundred seventeen million, four hundred twenty-five thousand, seventeen".