505050550111 has 8 divisors (see below), whose sum is σ = 509771886624. Its totient is φ = 500350433760.

The previous prime is 505050550007. The next prime is 505050550129. The reversal of 505050550111 is 111055050505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505050550111 is a prime.

It is a super-2 number, since 2×505050550111² (a number of 24 digits) contains 22 as substring.

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 505050550111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545050550111) 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, 5257216 + ... + 5352421.

It is an arithmetic number, because the mean of its divisors is an integer number (63721485828).

Almost surely, 2^505050550111 is an apocalyptic number.

505050550111 is a deficient number, since it is larger than the sum of its proper divisors (4721336513).

505050550111 is a wasteful number, since it uses less digits than its factorization.

505050550111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610081.

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

The spelling of 505050550111 in words is "five hundred five billion, fifty million, five hundred fifty thousand, one hundred eleven".