505612306513 has 24 divisors (see below), whose sum is σ = 537964481600. Its totient is φ = 473888540448.

The previous prime is 505612306499. The next prime is 505612306517. The reversal of 505612306513 is 315603216505.

It is a de Polignac number, because none of the positive numbers 2^k-505612306513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505612306517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269084908 + ... + 269086786.

Almost surely, 2^505612306513 is an apocalyptic number.

It is an amenable number.

505612306513 is a deficient number, since it is larger than the sum of its proper divisors (32352175087).

505612306513 is a wasteful number, since it uses less digits than its factorization.

505612306513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3242 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 505612306513 in words is "five hundred five billion, six hundred twelve million, three hundred six thousand, five hundred thirteen".