512690663 has 2 divisors, whose sum is σ = 512690664. Its totient is φ = 512690662.

The previous prime is 512690657. The next prime is 512690669. The reversal of 512690663 is 366096215.

It is a balanced prime because it is at equal distance from previous prime (512690657) and next prime (512690669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512690663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512690669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256345331 + 256345332.

It is an arithmetic number, because the mean of its divisors is an integer number (256345332).

Almost surely, 2^512690663 is an apocalyptic number.

512690663 is a deficient number, since it is larger than the sum of its proper divisors (1).

512690663 is an equidigital number, since it uses as much as digits as its factorization.

512690663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 512690663 is about 22642.6734949740. The cubic root of 512690663 is about 800.3595586852.

The spelling of 512690663 in words is "five hundred twelve million, six hundred ninety thousand, six hundred sixty-three".