513204343525 has 6 divisors (see below), whose sum is σ = 636373386002. Its totient is φ = 410563474800.

The previous prime is 513204343511. The next prime is 513204343543. The reversal of 513204343525 is 525343402315.

It can be written as a sum of positive squares in 3 ways, for example, as 157321703044 + 355882640481 = 396638^2 + 596559^2 .

It is not a de Polignac number, because 513204343525 - 2⁷ = 513204343397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10264086846 + ... + 10264086895.

Almost surely, 2^513204343525 is an apocalyptic number.

It is an amenable number.

513204343525 is a deficient number, since it is larger than the sum of its proper divisors (123169042477).

513204343525 is a wasteful number, since it uses less digits than its factorization.

513204343525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20528173751 (or 20528173746 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 513204343525 in words is "five hundred thirteen billion, two hundred four million, three hundred forty-three thousand, five hundred twenty-five".