513525656613 has 32 divisors (see below), whose sum is σ = 703820741632. Its totient is φ = 332948880000.

The previous prime is 513525656587. The next prime is 513525656629. The reversal of 513525656613 is 316656525315.

It is not a de Polignac number, because 513525656613 - 2¹² = 513525652517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513525656663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4895313 + ... + 4999113.

It is an arithmetic number, because the mean of its divisors is an integer number (21994398176).

Almost surely, 2^513525656613 is an apocalyptic number.

It is an amenable number.

513525656613 is a deficient number, since it is larger than the sum of its proper divisors (190295085019).

513525656613 is a wasteful number, since it uses less digits than its factorization.

513525656613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104185.

The product of its digits is 2430000, while the sum is 48.

The spelling of 513525656613 in words is "five hundred thirteen billion, five hundred twenty-five million, six hundred fifty-six thousand, six hundred thirteen".