105500550055 has 16 divisors (see below), whose sum is σ = 127884317184. Its totient is φ = 83545368480.

The previous prime is 105500550049. The next prime is 105500550083. The reversal of 105500550055 is 550055005501.

It is not a de Polignac number, because 105500550055 - 2³ = 105500550047 is a prime.

It is a super-2 number, since 2×105500550055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

105500550055 is a modest number, since divided by 550055 gives 1055 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 105500549999 and 105500550026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199182 + ... + 1284148.

It is an arithmetic number, because the mean of its divisors is an integer number (7992769824).

Almost surely, 2^105500550055 is an apocalyptic number.

105500550055 is a deficient number, since it is larger than the sum of its proper divisors (22383767129).

105500550055 is a wasteful number, since it uses less digits than its factorization.

105500550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87486.

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

Adding to 105500550055 its reverse (550055005501), we get a palindrome (655555555556).

The spelling of 105500550055 in words is "one hundred five billion, five hundred million, five hundred fifty thousand, fifty-five".