51210543622050 has 144 divisors (see below), whose sum is σ = 138469049313192. Its totient is φ = 13568731545600.

The previous prime is 51210543622013. The next prime is 51210543622097. The reversal of 51210543622050 is 5022634501215.

51210543622050 is a `hidden beast` number, since 5 + 1 + 2 + 1 + 0 + 543 + 62 + 2 + 0 + 50 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 29188162396449 + 22022381225601 = 5402607^2 + 4692801^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51210543621996 and 51210543622014.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 45355360 + ... + 46470740.

Almost surely, 2^{51210543622050} is an apocalyptic number.

51210543622050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51210543622050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69234524656596).

51210543622050 is an abundant number, since it is smaller than the sum of its proper divisors (87258505691142).

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

51210543622050 is a wasteful number, since it uses less digits than its factorization.

51210543622050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116053 (or 1116045 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 51210543622050 in words is "fifty-one trillion, two hundred ten billion, five hundred forty-three million, six hundred twenty-two thousand, fifty".