513668524 has 12 divisors (see below), whose sum is σ = 903627648. Its totient is φ = 255489200.

The previous prime is 513668513. The next prime is 513668557. The reversal of 513668524 is 425866315.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 335407 + ... + 336934.

It is an arithmetic number, because the mean of its divisors is an integer number (75302304).

Almost surely, 2^513668524 is an apocalyptic number.

It is an amenable number.

513668524 is a deficient number, since it is larger than the sum of its proper divisors (389959124).

513668524 is a wasteful number, since it uses less digits than its factorization.

513668524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672536 (or 672534 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 513668524 is about 22664.2565287282. The cubic root of 513668524 is about 800.8680806210.

The spelling of 513668524 in words is "five hundred thirteen million, six hundred sixty-eight thousand, five hundred twenty-four".