513525413652 has 24 divisors (see below), whose sum is σ = 1211689180800. Its totient is φ = 169251821376.

The previous prime is 513525413629. The next prime is 513525413711. The reversal of 513525413652 is 256314525315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240413452 + ... + 240415587.

It is an arithmetic number, because the mean of its divisors is an integer number (50487049200).

Almost surely, 2^513525413652 is an apocalyptic number.

It is an amenable number.

513525413652 is an abundant number, since it is smaller than the sum of its proper divisors (698163767148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513525413652 is a wasteful number, since it uses less digits than its factorization.

513525413652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480829135 (or 480829133 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

Adding to 513525413652 its reverse (256314525315), we get a palindrome (769839938967).

The spelling of 513525413652 in words is "five hundred thirteen billion, five hundred twenty-five million, four hundred thirteen thousand, six hundred fifty-two".