505550105101 has 16 divisors (see below), whose sum is σ = 520553904640. Its totient is φ = 490768087680.

The previous prime is 505550105089. The next prime is 505550105107. The reversal of 505550105101 is 101501055505.

It is a cyclic number.

It is not a de Polignac number, because 505550105101 - 2⁵ = 505550105069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505550105101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550105107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12591280 + ... + 12631366.

It is an arithmetic number, because the mean of its divisors is an integer number (32534619040).

Almost surely, 2^505550105101 is an apocalyptic number.

It is an amenable number.

505550105101 is a deficient number, since it is larger than the sum of its proper divisors (15003799539).

505550105101 is a wasteful number, since it uses less digits than its factorization.

505550105101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42844.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 505550105101 in words is "five hundred five billion, five hundred fifty million, one hundred five thousand, one hundred one".