505550551101 has 16 divisors (see below), whose sum is σ = 681144119040. Its totient is φ = 333499291200.

The previous prime is 505550551097. The next prime is 505550551141. The reversal of 505550551101 is 101155055505.

It is not a de Polignac number, because 505550551101 - 2² = 505550551097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550551141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20220 + ... + 1005738.

It is an arithmetic number, because the mean of its divisors is an integer number (42571507440).

Almost surely, 2^505550551101 is an apocalyptic number.

It is an amenable number.

505550551101 is a deficient number, since it is larger than the sum of its proper divisors (175593567939).

505550551101 is a wasteful number, since it uses less digits than its factorization.

505550551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987316.

The product of its (nonzero) digits is 15625, while the sum is 33.

The spelling of 505550551101 in words is "five hundred five billion, five hundred fifty million, five hundred fifty-one thousand, one hundred one".