51812025522500 has 30 divisors (see below), whose sum is σ = 113302537418070. Its totient is φ = 20724810208000.

The previous prime is 51812025522479. The next prime is 51812025522529. The reversal of 51812025522500 is 522552021815.

51812025522500 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 5 ways, for example, as 15647293503556 + 36164732018944 = 3955666^2 + 6013712^2 .

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 9 ways as a sum of consecutive naturals, for example, 10362402605 + ... + 10362407604.

It is an arithmetic number, because the mean of its divisors is an integer number (3776751247269).

Almost surely, 2^{51812025522500} is an apocalyptic number.

51812025522500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51812025522500 is an abundant number, since it is smaller than the sum of its proper divisors (61490511895570).

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

51812025522500 is a wasteful number, since it uses less digits than its factorization.

51812025522500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724810233 (or 20724810216 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 51812025522500 in words is "fifty-one trillion, eight hundred twelve billion, twenty-five million, five hundred twenty-two thousand, five hundred".