51812025522337 has 4 divisors (see below), whose sum is σ = 51812093862036. Its totient is φ = 51811957182640.

The previous prime is 51812025522331. The next prime is 51812025522409. The reversal of 51812025522337 is 73322552021815.

51812025522337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20329647163281 + 31482378359056 = 4508841^2 + 5610916^2 .

It is a cyclic number.

It is not a de Polignac number, because 51812025522337 - 2¹⁹ = 51812024998049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51812025522331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33019714 + ... + 34553227.

It is an arithmetic number, because the mean of its divisors is an integer number (12953023465509).

Almost surely, 2^{51812025522337} is an apocalyptic number.

It is an amenable number.

51812025522337 is a deficient number, since it is larger than the sum of its proper divisors (68339699).

51812025522337 is an equidigital number, since it uses as much as digits as its factorization.

51812025522337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68339698.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 51812025522337 in words is "fifty-one trillion, eight hundred twelve billion, twenty-five million, five hundred twenty-two thousand, three hundred thirty-seven".