51050105511012 has 192 divisors, whose sum is σ = 134303984640000. Its totient is φ = 16766678073600.

The previous prime is 51050105511011. The next prime is 51050105511079. The reversal of 51050105511012 is 21011550105015.

It is a happy number.

51050105511012 is a `hidden beast` number, since 5 + 1 + 0 + 5 + 0 + 1 + 0 + 551 + 101 + 2 = 666.

It is a super-2 number, since 2×51050105511012² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51050105511011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10106927887 + ... + 10106932937.

It is an arithmetic number, because the mean of its divisors is an integer number (699499920000).

Almost surely, 2^{51050105511012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51050105511012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67151992320000).

51050105511012 is an abundant number, since it is smaller than the sum of its proper divisors (83253879128988).

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

51050105511012 is a wasteful number, since it uses less digits than its factorization.

51050105511012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351 (or 7343 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 27.

Adding to 51050105511012 its reverse (21011550105015), we get a palindrome (72061655616027).

The spelling of 51050105511012 in words is "fifty-one trillion, fifty billion, one hundred five million, five hundred eleven thousand, twelve".