509471227 has 2 divisors, whose sum is σ = 509471228. Its totient is φ = 509471226.

The previous prime is 509471189. The next prime is 509471233. The reversal of 509471227 is 722174905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 509471227 - 2⁷ = 509471099 is a prime.

It is a super-2 number, since 2×509471227² = 519121862281771058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (509471327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254735613 + 254735614.

It is an arithmetic number, because the mean of its divisors is an integer number (254735614).

Almost surely, 2^509471227 is an apocalyptic number.

509471227 is a deficient number, since it is larger than the sum of its proper divisors (1).

509471227 is an equidigital number, since it uses as much as digits as its factorization.

509471227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 509471227 is about 22571.4693141585. The cubic root of 509471227 is about 798.6807564205.

The spelling of 509471227 in words is "five hundred nine million, four hundred seventy-one thousand, two hundred twenty-seven".