509859011 has 2 divisors, whose sum is σ = 509859012. Its totient is φ = 509859010.

The previous prime is 509858989. The next prime is 509859037. The reversal of 509859011 is 110958905.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509859011 - 2¹⁰ = 509857987 is a prime.

It is a super-2 number, since 2×509859011² = 519912422195796242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (509852011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254929505 + 254929506.

It is an arithmetic number, because the mean of its divisors is an integer number (254929506).

Almost surely, 2^509859011 is an apocalyptic number.

509859011 is a deficient number, since it is larger than the sum of its proper divisors (1).

509859011 is an equidigital number, since it uses as much as digits as its factorization.

509859011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 509859011 is about 22580.0578165779. The cubic root of 509859011 is about 798.8833436359.

The spelling of 509859011 in words is "five hundred nine million, eight hundred fifty-nine thousand, eleven".