509995411 has 2 divisors, whose sum is σ = 509995412. Its totient is φ = 509995410.

The previous prime is 509995391. The next prime is 509995429. The reversal of 509995411 is 114599905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 509995411 - 2²⁷ = 375777683 is a prime.

It is not a weakly prime, because it can be changed into another prime (509999411) 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, 254997705 + 254997706.

It is an arithmetic number, because the mean of its divisors is an integer number (254997706).

Almost surely, 2^509995411 is an apocalyptic number.

509995411 is a deficient number, since it is larger than the sum of its proper divisors (1).

509995411 is an equidigital number, since it uses as much as digits as its factorization.

509995411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 509995411 is about 22583.0779788761. The cubic root of 509995411 is about 798.9545776895.

The spelling of 509995411 in words is "five hundred nine million, nine hundred ninety-five thousand, four hundred eleven".