51322756 has 6 divisors (see below), whose sum is σ = 89814830. Its totient is φ = 25661376.

The previous prime is 51322681. The next prime is 51322769. The reversal of 51322756 is 65722315.

51322756 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., 48024900 + 3297856 = 6930^2 + 1816^2 .

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 as a sum of consecutive naturals, namely, 6415341 + ... + 6415348.

Almost surely, 2^51322756 is an apocalyptic number.

It is an amenable number.

51322756 is a deficient number, since it is larger than the sum of its proper divisors (38492074).

51322756 is a wasteful number, since it uses less digits than its factorization.

51322756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830693 (or 12830691 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 51322756 is about 7163.9902289157. The cubic root of 51322756 is about 371.6236317505.

The spelling of 51322756 in words is "fifty-one million, three hundred twenty-two thousand, seven hundred fifty-six".