513513425545 has 16 divisors (see below), whose sum is σ = 617453360640. Its totient is φ = 409986720000.

The previous prime is 513513425539. The next prime is 513513425563. The reversal of 513513425545 is 545524315315.

It is not a de Polignac number, because 513513425545 - 2¹¹ = 513513423497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5108520 + ... + 5208070.

It is an arithmetic number, because the mean of its divisors is an integer number (38590835040).

Almost surely, 2^513513425545 is an apocalyptic number.

It is an amenable number.

513513425545 is a deficient number, since it is larger than the sum of its proper divisors (103939935095).

513513425545 is a wasteful number, since it uses less digits than its factorization.

513513425545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101616.

The product of its digits is 900000, while the sum is 43.

The spelling of 513513425545 in words is "five hundred thirteen billion, five hundred thirteen million, four hundred twenty-five thousand, five hundred forty-five".