51106111050 has 24 divisors (see below), whose sum is σ = 126743155776. Its totient is φ = 13628296240.

The previous prime is 51106111013. The next prime is 51106111057. The reversal of 51106111050 is 5011160115.

It is a happy number.

It is a super-2 number, since 2×51106111050² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51106111057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170353554 + ... + 170353853.

It is an arithmetic number, because the mean of its divisors is an integer number (5280964824).

Almost surely, 2^51106111050 is an apocalyptic number.

51106111050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51106111050 is an abundant number, since it is smaller than the sum of its proper divisors (75637044726).

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

51106111050 is a wasteful number, since it uses less digits than its factorization.

51106111050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340707422 (or 340707417 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 51106111050 its reverse (5011160115), we get a palindrome (56117271165).

The spelling of 51106111050 in words is "fifty-one billion, one hundred six million, one hundred eleven thousand, fifty".