51751353256 has 16 divisors (see below), whose sum is σ = 97038918900. Its totient is φ = 25874308224.

The previous prime is 51751353253. The next prime is 51751353257. The reversal of 51751353256 is 65235315715.

It can be written as a sum of positive squares in 2 ways, for example, as 39587469156 + 12163884100 = 198966^2 + 110290^2 .

It is not an unprimeable number, because it can be changed into a prime (51751353253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295 + ... + 321718.

Almost surely, 2^51751353256 is an apocalyptic number.

It is an amenable number.

51751353256 is a deficient number, since it is larger than the sum of its proper divisors (45287565644).

51751353256 is a wasteful number, since it uses less digits than its factorization.

51751353256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342108 (or 342104 counting only the distinct ones).

The product of its digits is 472500, while the sum is 43.

The spelling of 51751353256 in words is "fifty-one billion, seven hundred fifty-one million, three hundred fifty-three thousand, two hundred fifty-six".