512121632 has 24 divisors (see below), whose sum is σ = 1099898352. Its totient is φ = 232782400.

The previous prime is 512121619. The next prime is 512121641. The reversal of 512121632 is 236121215.

It is a junction number, because it is equal to n+sod(n) for n = 512121598 and 512121607.

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 3 ways as a sum of consecutive naturals, for example, 727094 + ... + 727797.

It is an arithmetic number, because the mean of its divisors is an integer number (45829098).

Almost surely, 2^512121632 is an apocalyptic number.

It is an amenable number.

512121632 is an abundant number, since it is smaller than the sum of its proper divisors (587776720).

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

512121632 is a wasteful number, since it uses less digits than its factorization.

512121632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454912 (or 1454904 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 512121632 is about 22630.1045512388. The cubic root of 512121632 is about 800.0633449841.

Adding to 512121632 its reverse (236121215), we get a palindrome (748242847).

The spelling of 512121632 in words is "five hundred twelve million, one hundred twenty-one thousand, six hundred thirty-two".