513650647 has 2 divisors, whose sum is σ = 513650648. Its totient is φ = 513650646.

The previous prime is 513650629. The next prime is 513650659. The reversal of 513650647 is 746056315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513650647 - 2¹⁵ = 513617879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513650677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256825323 + 256825324.

It is an arithmetic number, because the mean of its divisors is an integer number (256825324).

Almost surely, 2^513650647 is an apocalyptic number.

513650647 is a deficient number, since it is larger than the sum of its proper divisors (1).

513650647 is an equidigital number, since it uses as much as digits as its factorization.

513650647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 513650647 is about 22663.8621377734. The cubic root of 513650647 is about 800.8587897495.

The spelling of 513650647 in words is "five hundred thirteen million, six hundred fifty thousand, six hundred forty-seven".