513435112520 has 32 divisors (see below), whose sum is σ = 1260249822720. Its totient is φ = 186703677120.

The previous prime is 513435112493. The next prime is 513435112571. The reversal of 513435112520 is 25211534315.

It is a super-4 number, since 4×513435112520⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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, 583448552 + ... + 583449431.

It is an arithmetic number, because the mean of its divisors is an integer number (39382806960).

Almost surely, 2^513435112520 is an apocalyptic number.

It is an amenable number.

513435112520 is an abundant number, since it is smaller than the sum of its proper divisors (746814710200).

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

513435112520 is a wasteful number, since it uses less digits than its factorization.

513435112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166898005 (or 1166898001 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 513435112520 its reverse (25211534315), we get a palindrome (538646646835).

The spelling of 513435112520 in words is "five hundred thirteen billion, four hundred thirty-five million, one hundred twelve thousand, five hundred twenty".