512215424 has 48 divisors (see below), whose sum is σ = 1187044380. Its totient is φ = 219518208.

The previous prime is 512215421. The next prime is 512215489. The reversal of 512215424 is 424512215.

It is a junction number, because it is equal to n+sod(n) for n = 512215393 and 512215402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512215421) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 34562 + ... + 47105.

Almost surely, 2^512215424 is an apocalyptic number.

It is an amenable number.

512215424 is an abundant number, since it is smaller than the sum of its proper divisors (674828956).

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

512215424 is an equidigital number, since it uses as much as digits as its factorization.

512215424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81695 (or 81676 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 512215424 is about 22632.1767402077. The cubic root of 512215424 is about 800.1121842676.

Adding to 512215424 its reverse (424512215), we get a palindrome (936727639).

The spelling of 512215424 in words is "five hundred twelve million, two hundred fifteen thousand, four hundred twenty-four".