513604065 has 32 divisors (see below), whose sum is σ = 915505920. Its totient is φ = 244129536.

The previous prime is 513603947. The next prime is 513604087. The reversal of 513604065 is 560406315.

It is not a de Polignac number, because 513604065 - 2⁸ = 513603809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39757 + ... + 51066.

It is an arithmetic number, because the mean of its divisors is an integer number (28609560).

Almost surely, 2^513604065 is an apocalyptic number.

It is an amenable number.

513604065 is a deficient number, since it is larger than the sum of its proper divisors (401901855).

513604065 is a wasteful number, since it uses less digits than its factorization.

513604065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90873.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 513604065 is about 22662.8344432024. The cubic root of 513604065 is about 800.8345795643.

The spelling of 513604065 in words is "five hundred thirteen million, six hundred four thousand, sixty-five".