513536223512 has 16 divisors (see below), whose sum is σ = 1036948143840. Its totient is φ = 237016718496.

The previous prime is 513536223509. The next prime is 513536223523. The reversal of 513536223512 is 215322635315.

It is a super-2 number, since 2×513536223512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2468924048 + ... + 2468924255.

It is an arithmetic number, because the mean of its divisors is an integer number (64809258990).

Almost surely, 2^513536223512 is an apocalyptic number.

513536223512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

513536223512 is an abundant number, since it is smaller than the sum of its proper divisors (523411920328).

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

513536223512 is a wasteful number, since it uses less digits than its factorization.

513536223512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937848322 (or 4937848318 counting only the distinct ones).

The product of its digits is 162000, while the sum is 38.

Adding to 513536223512 its reverse (215322635315), we get a palindrome (728858858827).

The spelling of 513536223512 in words is "five hundred thirteen billion, five hundred thirty-six million, two hundred twenty-three thousand, five hundred twelve".