51111441150 has 192 divisors, whose sum is σ = 166352209920. Its totient is φ = 10061539200.

The previous prime is 51111441149. The next prime is 51111441151. The reversal of 51111441150 is 5114411115.

It is an interprime number because it is at equal distance from previous prime (51111441149) and next prime (51111441151).

It is a super-2 number, since 2×51111441150² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51111441150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111441151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 102997 + ... + 335903.

It is an arithmetic number, because the mean of its divisors is an integer number (866417760).

Almost surely, 2^51111441150 is an apocalyptic number.

51111441150 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 51111441150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83176104960).

51111441150 is an abundant number, since it is smaller than the sum of its proper divisors (115240768770).

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

51111441150 is a wasteful number, since it uses less digits than its factorization.

51111441150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232959 (or 232954 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 24.

Adding to 51111441150 its reverse (5114411115), we get a palindrome (56225852265).

The spelling of 51111441150 in words is "fifty-one billion, one hundred eleven million, four hundred forty-one thousand, one hundred fifty".