51105500050 has 96 divisors (see below), whose sum is σ = 104956746624. Its totient is φ = 18359040000.

The previous prime is 51105500029. The next prime is 51105500053. The reversal of 51105500050 is 5000550115.

It is a super-2 number, since 2×51105500050² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 51105499994 and 51105500030.

It is not an unprimeable number, because it can be changed into a prime (51105500053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37384467 + ... + 37385833.

It is an arithmetic number, because the mean of its divisors is an integer number (1093299444).

Almost surely, 2^51105500050 is an apocalyptic number.

51105500050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51105500050 is an abundant number, since it is smaller than the sum of its proper divisors (53851246574).

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

51105500050 is a wasteful number, since it uses less digits than its factorization.

51105500050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

It can be divided in two parts, 51105 and 500050, that added together give a palindrome (551155).

The spelling of 51105500050 in words is "fifty-one billion, one hundred five million, five hundred thousand, fifty".