513355416325 has 24 divisors (see below), whose sum is σ = 638560214600. Its totient is φ = 409394995200.

The previous prime is 513355416319. The next prime is 513355416347. The reversal of 513355416325 is 523614553315.

It can be written as a sum of positive squares in 12 ways, for example, as 265161143844 + 248194272481 = 514938^2 + 498191^2 .

It is not a de Polignac number, because 513355416325 - 2³ = 513355416317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48165397 + ... + 48176053.

Almost surely, 2^513355416325 is an apocalyptic number.

It is an amenable number.

513355416325 is a deficient number, since it is larger than the sum of its proper divisors (125204798275).

513355416325 is a wasteful number, since it uses less digits than its factorization.

513355416325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16537 (or 16532 counting only the distinct ones).

The product of its digits is 810000, while the sum is 43.

The spelling of 513355416325 in words is "five hundred thirteen billion, three hundred fifty-five million, four hundred sixteen thousand, three hundred twenty-five".