513415252 has 24 divisors (see below), whose sum is σ = 1031327360. Its totient is φ = 219071520.

The previous prime is 513415247. The next prime is 513415289. The reversal of 513415252 is 252514315.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 513415252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33624 + ... + 46447.

Almost surely, 2^513415252 is an apocalyptic number.

It is an amenable number.

513415252 is an abundant number, since it is smaller than the sum of its proper divisors (517912108).

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

513415252 is a wasteful number, since it uses less digits than its factorization.

513415252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80311 (or 80309 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 513415252 is about 22658.6683633439. The cubic root of 513415252 is about 800.7364322930.

Adding to 513415252 its reverse (252514315), we get a palindrome (765929567).

The spelling of 513415252 in words is "five hundred thirteen million, four hundred fifteen thousand, two hundred fifty-two".