105005500051 has 4 divisors (see below), whose sum is σ = 105048414432. Its totient is φ = 104962585672.

The previous prime is 105005500043. The next prime is 105005500079. The reversal of 105005500051 is 150005500501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105005500051 - 2³ = 105005500043 is a prime.

It is a super-2 number, since 2×105005500051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105005499995 and 105005500031.

It is not an unprimeable number, because it can be changed into a prime (105006500051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21453520 + ... + 21458413.

It is an arithmetic number, because the mean of its divisors is an integer number (26262103608).

Almost surely, 2^105005500051 is an apocalyptic number.

105005500051 is a deficient number, since it is larger than the sum of its proper divisors (42914381).

105005500051 is an equidigital number, since it uses as much as digits as its factorization.

105005500051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42914380.

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

The spelling of 105005500051 in words is "one hundred five billion, five million, five hundred thousand, fifty-one".