513536351425 has 6 divisors (see below), whose sum is σ = 636785075798. Its totient is φ = 410829081120.

The previous prime is 513536351417. The next prime is 513536351429. The reversal of 513536351425 is 524153635315.

It can be written as a sum of positive squares in 3 ways, for example, as 1693404801 + 511842946624 = 41151^2 + 715432^2 .

It is not a de Polignac number, because 513536351425 - 2³ = 513536351417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513536351429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10270727004 + ... + 10270727053.

Almost surely, 2^513536351425 is an apocalyptic number.

It is an amenable number.

513536351425 is a deficient number, since it is larger than the sum of its proper divisors (123248724373).

513536351425 is a wasteful number, since it uses less digits than its factorization.

513536351425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20541454067 (or 20541454062 counting only the distinct ones).

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

The spelling of 513536351425 in words is "five hundred thirteen billion, five hundred thirty-six million, three hundred fifty-one thousand, four hundred twenty-five".