105500500050056 has 8 divisors (see below), whose sum is σ = 197813437593870. Its totient is φ = 52750250025024.

The previous prime is 105500500050031. The next prime is 105500500050059. The reversal of 105500500050056 is 650050005005501.

It can be written as a sum of positive squares in only one way, i.e., 102445450513156 + 3055049536900 = 10121534^2 + 1747870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×105500500050056² (a number of 29 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 6593781253121 + ... + 6593781253136.

Almost surely, 2^{105500500050056} is an apocalyptic number.

It is an amenable number.

105500500050056 is a deficient number, since it is larger than the sum of its proper divisors (92312937543814).

105500500050056 is a wasteful number, since it uses less digits than its factorization.

105500500050056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13187562506263 (or 13187562506259 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

Adding to 105500500050056 its reverse (650050005005501), we get a palindrome (755550505055557).

The spelling of 105500500050056 in words is "one hundred five trillion, five hundred billion, five hundred million, fifty thousand, fifty-six".