505055005500 has 48 divisors (see below), whose sum is σ = 1470720180384. Its totient is φ = 134681334400.

The previous prime is 505055005457. The next prime is 505055005523. The reversal of 505055005500 is 5500550505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168350169 + ... + 168353168.

It is an arithmetic number, because the mean of its divisors is an integer number (30640003758).

Almost surely, 2^505055005500 is an apocalyptic number.

505055005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505055005500 is an abundant number, since it is smaller than the sum of its proper divisors (965665174884).

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

505055005500 is a wasteful number, since it uses less digits than its factorization.

505055005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336703359 (or 336703347 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 505055005500 in words is "five hundred five billion, fifty-five million, five thousand, five hundred".