513215452 has 6 divisors (see below), whose sum is σ = 898127048. Its totient is φ = 256607724.

The previous prime is 513215411. The next prime is 513215471. The reversal of 513215452 is 254512315.

It is a self number, because there is not a number n which added to its sum of digits gives 513215452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64151928 + ... + 64151935.

Almost surely, 2^513215452 is an apocalyptic number.

It is an amenable number.

513215452 is a deficient number, since it is larger than the sum of its proper divisors (384911596).

513215452 is a wasteful number, since it uses less digits than its factorization.

513215452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128303867 (or 128303865 counting only the distinct ones).

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

The square root of 513215452 is about 22654.2590256225. The cubic root of 513215452 is about 800.6325476392.

Adding to 513215452 its reverse (254512315), we get a palindrome (767727767).

The spelling of 513215452 in words is "five hundred thirteen million, two hundred fifteen thousand, four hundred fifty-two".