505550105500 has 96 divisors (see below), whose sum is σ = 1275349053888. Its totient is φ = 173022464000.

The previous prime is 505550105447. The next prime is 505550105513. The reversal of 505550105500 is 5501055505.

It is a super-2 number, since 2×505550105500² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2609977 + ... + 2796976.

It is an arithmetic number, because the mean of its divisors is an integer number (13284885978).

Almost surely, 2^505550105500 is an apocalyptic number.

505550105500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505550105500 is an abundant number, since it is smaller than the sum of its proper divisors (769798948388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505550105500 is a wasteful number, since it uses less digits than its factorization.

505550105500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407000 (or 5406988 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 505550105500 in words is "five hundred five billion, five hundred fifty million, one hundred five thousand, five hundred".