517365047 has 2 divisors, whose sum is σ = 517365048. Its totient is φ = 517365046.

The previous prime is 517365031. The next prime is 517365053. The reversal of 517365047 is 740563715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 517365047 - 2⁴ = 517365031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 517365047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517365077) 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 as a sum of consecutive naturals, namely, 258682523 + 258682524.

It is an arithmetic number, because the mean of its divisors is an integer number (258682524).

Almost surely, 2^517365047 is an apocalyptic number.

517365047 is a deficient number, since it is larger than the sum of its proper divisors (1).

517365047 is an equidigital number, since it uses as much as digits as its factorization.

517365047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 517365047 is about 22745.6599596494. The cubic root of 517365047 is about 802.7845916287.

The spelling of 517365047 in words is "five hundred seventeen million, three hundred sixty-five thousand, forty-seven".