509595473 has 2 divisors, whose sum is σ = 509595474. Its totient is φ = 509595472.

The previous prime is 509595469. The next prime is 509595517. The reversal of 509595473 is 374595905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373919569 + 135675904 = 19337^2 + 11648^2 .

It is a cyclic number.

It is not a de Polignac number, because 509595473 - 2² = 509595469 is a prime.

It is a super-2 number, since 2×509595473² = 519375092204187458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (509595773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254797736 + 254797737.

It is an arithmetic number, because the mean of its divisors is an integer number (254797737).

Almost surely, 2^509595473 is an apocalyptic number.

It is an amenable number.

509595473 is a deficient number, since it is larger than the sum of its proper divisors (1).

509595473 is an equidigital number, since it uses as much as digits as its factorization.

509595473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 850500, while the sum is 47.

The square root of 509595473 is about 22574.2214262198. The cubic root of 509595473 is about 798.7456765562.

The spelling of 509595473 in words is "five hundred nine million, five hundred ninety-five thousand, four hundred seventy-three".