509470568 has 8 divisors (see below), whose sum is σ = 955257330. Its totient is φ = 254735280.

The previous prime is 509470561. The next prime is 509470573. The reversal of 509470568 is 865074905.

It can be written as a sum of positive squares in only one way, i.e., 306180004 + 203290564 = 17498^2 + 14258^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (509470561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31841903 + ... + 31841918.

Almost surely, 2^509470568 is an apocalyptic number.

It is an amenable number.

509470568 is a deficient number, since it is larger than the sum of its proper divisors (445786762).

509470568 is a wasteful number, since it uses less digits than its factorization.

509470568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63683827 (or 63683823 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 509470568 is about 22571.4547160789. The cubic root of 509470568 is about 798.6804120564.

The spelling of 509470568 in words is "five hundred nine million, four hundred seventy thousand, five hundred sixty-eight".