509564068 has 18 divisors (see below), whose sum is σ = 965610114. Its totient is φ = 235183104.

The previous prime is 509564053. The next prime is 509564087. The reversal of 509564068 is 860465905.

It can be written as a sum of positive squares in 3 ways, for example, as 20358144 + 489205924 = 4512^2 + 22118^2 .

It is a super-3 number, since 3×509564068³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376221 + ... + 377572.

Almost surely, 2^509564068 is an apocalyptic number.

It is an amenable number.

509564068 is a deficient number, since it is larger than the sum of its proper divisors (456046046).

509564068 is a wasteful number, since it uses less digits than its factorization.

509564068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753823 (or 753808 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 509564068 is about 22573.5258211915. The cubic root of 509564068 is about 798.7292680357.

The spelling of 509564068 in words is "five hundred nine million, five hundred sixty-four thousand, sixty-eight".