513765047 has 2 divisors, whose sum is σ = 513765048. Its totient is φ = 513765046.

The previous prime is 513765029. The next prime is 513765071. The reversal of 513765047 is 740567315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513765047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513765047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513785047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256882523 + 256882524.

It is an arithmetic number, because the mean of its divisors is an integer number (256882524).

Almost surely, 2^513765047 is an apocalyptic number.

513765047 is a deficient number, since it is larger than the sum of its proper divisors (1).

513765047 is an equidigital number, since it uses as much as digits as its factorization.

513765047 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 513765047 is about 22666.3858389466. The cubic root of 513765047 is about 800.9182409512.

The spelling of 513765047 in words is "five hundred thirteen million, seven hundred sixty-five thousand, forty-seven".