51812025505912 has 64 divisors (see below), whose sum is σ = 113797964689920. Its totient is φ = 21655732195968.

The previous prime is 51812025505853. The next prime is 51812025505913. The reversal of 51812025505912 is 21950552021815.

51812025505912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51812025505913) 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 15 ways as a sum of consecutive naturals, for example, 51770458 + ... + 52761769.

It is an arithmetic number, because the mean of its divisors is an integer number (1778093198280).

Almost surely, 2^{51812025505912} is an apocalyptic number.

It is an amenable number.

51812025505912 is an abundant number, since it is smaller than the sum of its proper divisors (61985939184008).

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

51812025505912 is a wasteful number, since it uses less digits than its factorization.

51812025505912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104532460 (or 104532456 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 46.

The spelling of 51812025505912 in words is "fifty-one trillion, eight hundred twelve billion, twenty-five million, five hundred five thousand, nine hundred twelve".