509016863 has 2 divisors, whose sum is σ = 509016864. Its totient is φ = 509016862.

The previous prime is 509016853. The next prime is 509016883. The reversal of 509016863 is 368610905.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509016863 - 2²⁴ = 492239647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509016803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254508431 + 254508432.

It is an arithmetic number, because the mean of its divisors is an integer number (254508432).

Almost surely, 2^509016863 is an apocalyptic number.

509016863 is a deficient number, since it is larger than the sum of its proper divisors (1).

509016863 is an equidigital number, since it uses as much as digits as its factorization.

509016863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 509016863 is about 22561.4020619287. The cubic root of 509016863 is about 798.4432554605.

The spelling of 509016863 in words is "five hundred nine million, sixteen thousand, eight hundred sixty-three".