513521521032 has 128 divisors (see below), whose sum is σ = 1483939215360. Its totient is φ = 146674851840.

The previous prime is 513521521031. The next prime is 513521521081. The reversal of 513521521032 is 230125125315.

It is not an unprimeable number, because it can be changed into a prime (513521521031) 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, 275944 + ... + 1050327.

It is an arithmetic number, because the mean of its divisors is an integer number (11593275120).

Almost surely, 2^513521521032 is an apocalyptic number.

513521521032 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

513521521032 is an abundant number, since it is smaller than the sum of its proper divisors (970417694328).

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

513521521032 is a wasteful number, since it uses less digits than its factorization.

513521521032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326383 (or 1326379 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 513521521032 its reverse (230125125315), we get a palindrome (743646646347).

The spelling of 513521521032 in words is "five hundred thirteen billion, five hundred twenty-one million, five hundred twenty-one thousand, thirty-two".