513533213452 has 12 divisors (see below), whose sum is σ = 1027066426960. Its totient is φ = 220085662896.

The previous prime is 513533213393. The next prime is 513533213497. The reversal of 513533213452 is 254312335315.

513533213452 is an admirable number.

It is a super-2 number, since 2×513533213452² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9170235927 + ... + 9170235982.

Almost surely, 2^513533213452 is an apocalyptic number.

It is an amenable number.

513533213452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

513533213452 is a wasteful number, since it uses less digits than its factorization.

513533213452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18340471920 (or 18340471918 counting only the distinct ones).

The product of its digits is 162000, while the sum is 37.

Adding to 513533213452 its reverse (254312335315), we get a palindrome (767845548767).

The spelling of 513533213452 in words is "five hundred thirteen billion, five hundred thirty-three million, two hundred thirteen thousand, four hundred fifty-two".