513066656 has 24 divisors (see below), whose sum is σ = 1011716244. Its totient is φ = 256122880.

The previous prime is 513066649. The next prime is 513066677. The reversal of 513066656 is 656660315.

It can be written as a sum of positive squares in 2 ways, for example, as 357815056 + 155251600 = 18916^2 + 12460^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8006 + ... + 33018.

Almost surely, 2^513066656 is an apocalyptic number.

It is an amenable number.

513066656 is a deficient number, since it is larger than the sum of its proper divisors (498649588).

513066656 is a wasteful number, since it uses less digits than its factorization.

513066656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25664 (or 25656 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 513066656 is about 22650.9747251636. The cubic root of 513066656 is about 800.5551646511. Note that the first 3 decimals are identical.

The spelling of 513066656 in words is "five hundred thirteen million, sixty-six thousand, six hundred fifty-six".