513245511603 has 18 divisors (see below), whose sum is σ = 814877402612. Its totient is φ = 311057885160.

The previous prime is 513245511587. The next prime is 513245511661. The reversal of 513245511603 is 306115542315.

513245511603 is a `hidden beast` number, since 5 + 1 + 3 + 2 + 45 + 5 + 1 + 1 + 603 = 666.

It is not a de Polignac number, because 513245511603 - 2⁴ = 513245511587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513245511503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 235648825 + ... + 235651002.

Almost surely, 2^513245511603 is an apocalyptic number.

513245511603 is a deficient number, since it is larger than the sum of its proper divisors (301631891009).

513245511603 is a wasteful number, since it uses less digits than its factorization.

513245511603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471299855 (or 471299841 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 513245511603 in words is "five hundred thirteen billion, two hundred forty-five million, five hundred eleven thousand, six hundred three".