51812025522512 has 20 divisors (see below), whose sum is σ = 100508072069076. Its totient is φ = 25874458536960.

The previous prime is 51812025522479. The next prime is 51812025522529. The reversal of 51812025522512 is 21522552021815.

51812025522512 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 2 ways, for example, as 26434652063296 + 25377373459216 = 5141464^2 + 5037596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51812025522512.

It is a congruent number.

It is an unprimeable number.

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, 1972125473 + ... + 1972151744.

Almost surely, 2^{51812025522512} is an apocalyptic number.

It is an amenable number.

51812025522512 is a deficient number, since it is larger than the sum of its proper divisors (48696046546564).

51812025522512 is a wasteful number, since it uses less digits than its factorization.

51812025522512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944278046 (or 3944278040 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 41.

The spelling of 51812025522512 in words is "fifty-one trillion, eight hundred twelve billion, twenty-five million, five hundred twenty-two thousand, five hundred twelve".