505055501004 has 72 divisors (see below), whose sum is σ = 1195601616720. Its totient is φ = 165925509120.

The previous prime is 505055501003. The next prime is 505055501029. The reversal of 505055501004 is 400105550505.

It is not an unprimeable number, because it can be changed into a prime (505055501003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44418232 + ... + 44429600.

It is an arithmetic number, because the mean of its divisors is an integer number (16605578010).

Almost surely, 2^505055501004 is an apocalyptic number.

It is an amenable number.

505055501004 is an abundant number, since it is smaller than the sum of its proper divisors (690546115716).

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

505055501004 is a wasteful number, since it uses less digits than its factorization.

505055501004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11851 (or 11668 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The spelling of 505055501004 in words is "five hundred five billion, fifty-five million, five hundred one thousand, four".