513621232 has 10 divisors (see below), whose sum is σ = 995141168. Its totient is φ = 256810608.

The previous prime is 513621203. The next prime is 513621253. The reversal of 513621232 is 232126315.

It is a super-2 number, since 2×513621232² = 527613539922395648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513621197 and 513621206.

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, 16050648 + ... + 16050679.

Almost surely, 2^513621232 is an apocalyptic number.

It is an amenable number.

513621232 is a deficient number, since it is larger than the sum of its proper divisors (481519936).

513621232 is a wasteful number, since it uses less digits than its factorization.

513621232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32101335 (or 32101329 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 513621232 is about 22663.2131878955. The cubic root of 513621232 is about 800.8435019846.

Adding to 513621232 its reverse (232126315), we get a palindrome (745747547).

The spelling of 513621232 in words is "five hundred thirteen million, six hundred twenty-one thousand, two hundred thirty-two".