51750856 has 32 divisors (see below), whose sum is σ = 105257880. Its totient is φ = 23756800.

The previous prime is 51750841. The next prime is 51750863. The reversal of 51750856 is 65805715.

51750856 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 4 ways, for example, as 47196900 + 4553956 = 6870^2 + 2134^2 .

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 7 ways as a sum of consecutive naturals, for example, 936 + ... + 10216.

Almost surely, 2^51750856 is an apocalyptic number.

It is an amenable number.

51750856 is an abundant number, since it is smaller than the sum of its proper divisors (53507024).

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

51750856 is a wasteful number, since it uses less digits than its factorization.

51750856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345 (or 9341 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 51750856 is about 7193.8067808359. The cubic root of 51750856 is about 372.6540503614.

The spelling of 51750856 in words is "fifty-one million, seven hundred fifty thousand, eight hundred fifty-six".