505560100111 has 8 divisors (see below), whose sum is σ = 551531816784. Its totient is φ = 459590334720.

The previous prime is 505560100057. The next prime is 505560100127. The reversal of 505560100111 is 111001065505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-505560100111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505560100411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82965 + ... + 1008961.

It is an arithmetic number, because the mean of its divisors is an integer number (68941477098).

Almost surely, 2^505560100111 is an apocalyptic number.

505560100111 is a deficient number, since it is larger than the sum of its proper divisors (45971716673).

505560100111 is a wasteful number, since it uses less digits than its factorization.

505560100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975641.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 505560100111 its reverse (111001065505), we get a palindrome (616561165616).

The spelling of 505560100111 in words is "five hundred five billion, five hundred sixty million, one hundred thousand, one hundred eleven".