513454663 has 2 divisors, whose sum is σ = 513454664. Its totient is φ = 513454662.

The previous prime is 513454607. The next prime is 513454673. The reversal of 513454663 is 366454315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513454663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513454673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256727331 + 256727332.

It is an arithmetic number, because the mean of its divisors is an integer number (256727332).

Almost surely, 2^513454663 is an apocalyptic number.

513454663 is a deficient number, since it is larger than the sum of its proper divisors (1).

513454663 is an equidigital number, since it uses as much as digits as its factorization.

513454663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 37.

The square root of 513454663 is about 22659.5380138254. The cubic root of 513454663 is about 800.7569205923.

The spelling of 513454663 in words is "five hundred thirteen million, four hundred fifty-four thousand, six hundred sixty-three".