105500500050055 has 64 divisors (see below), whose sum is σ = 140786419852800. Its totient is φ = 75246984529920.

The previous prime is 105500500050031. The next prime is 105500500050059. The reversal of 105500500050055 is 550050005005501.

It is not a de Polignac number, because 105500500050055 - 2⁹ = 105500500049543 is a prime.

It is a super-2 number, since 2×105500500050055² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105500500049999 and 105500500050026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105500500050059) 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, 3059475844 + ... + 3059510326.

It is an arithmetic number, because the mean of its divisors is an integer number (2199787810200).

Almost surely, 2^{105500500050055} is an apocalyptic number.

105500500050055 is a deficient number, since it is larger than the sum of its proper divisors (35285919802745).

105500500050055 is a wasteful number, since it uses less digits than its factorization.

105500500050055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36784.

The product of its (nonzero) digits is 15625, while the sum is 31.

Adding to 105500500050055 its reverse (550050005005501), we get a palindrome (655550505055556).

The spelling of 105500500050055 in words is "one hundred five trillion, five hundred billion, five hundred million, fifty thousand, fifty-five".