51575312 has 20 divisors (see below), whose sum is σ = 100847340. Its totient is φ = 25550208.

The previous prime is 51575281. The next prime is 51575341. The reversal of 51575312 is 21357515.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20394256 + 31181056 = 4516^2 + 5584^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13043 + ... + 16530.

It is an arithmetic number, because the mean of its divisors is an integer number (5042367).

Almost surely, 2^51575312 is an apocalyptic number.

It is an amenable number.

51575312 is a deficient number, since it is larger than the sum of its proper divisors (49272028).

51575312 is a wasteful number, since it uses less digits than its factorization.

51575312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29690 (or 29684 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 51575312 is about 7181.5953659337. The cubic root of 51575312 is about 372.2322132843.

The spelling of 51575312 in words is "fifty-one million, five hundred seventy-five thousand, three hundred twelve".