517206047 has 2 divisors, whose sum is σ = 517206048. Its totient is φ = 517206046.

The previous prime is 517206029. The next prime is 517206061. The reversal of 517206047 is 740602715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 517206047 - 2⁸ = 517205791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517206247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258603023 + 258603024.

It is an arithmetic number, because the mean of its divisors is an integer number (258603024).

Almost surely, 2^517206047 is an apocalyptic number.

517206047 is a deficient number, since it is larger than the sum of its proper divisors (1).

517206047 is an equidigital number, since it uses as much as digits as its factorization.

517206047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 517206047 is about 22742.1645187964. The cubic root of 517206047 is about 802.7023442040.

The spelling of 517206047 in words is "five hundred seventeen million, two hundred six thousand, forty-seven".