513343520 has 48 divisors (see below), whose sum is σ = 1276611840. Its totient is φ = 194529024.

The previous prime is 513343517. The next prime is 513343553. The reversal of 513343520 is 25343315.

It is a self number, because there is not a number n which added to its sum of digits gives 513343520.

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, 81392 + ... + 87471.

It is an arithmetic number, because the mean of its divisors is an integer number (26596080).

Almost surely, 2^513343520 is an apocalyptic number.

It is an amenable number.

513343520 is an abundant number, since it is smaller than the sum of its proper divisors (763268320).

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

513343520 is a wasteful number, since it uses less digits than its factorization.

513343520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168897 (or 168889 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 513343520 is about 22657.0854259766. The cubic root of 513343520 is about 800.6991388281.

Adding to 513343520 its reverse (25343315), we get a palindrome (538686835).

The spelling of 513343520 in words is "five hundred thirteen million, three hundred forty-three thousand, five hundred twenty".