51195856 has 10 divisors (see below), whose sum is σ = 99192002. Its totient is φ = 25597920.

The previous prime is 51195847. The next prime is 51195863. The reversal of 51195856 is 65859115.

51195856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 1915456 = 7020^2 + 1384^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1599855 + ... + 1599886.

Almost surely, 2^51195856 is an apocalyptic number.

It is an amenable number.

51195856 is a deficient number, since it is larger than the sum of its proper divisors (47996146).

51195856 is a wasteful number, since it uses less digits than its factorization.

51195856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199749 (or 3199743 counting only the distinct ones).

The product of its digits is 54000, while the sum is 40.

The square root of 51195856 is about 7155.1279513367. The cubic root of 51195856 is about 371.3170883228.

The spelling of 51195856 in words is "fifty-one million, one hundred ninety-five thousand, eight hundred fifty-six".