505555004838 has 16 divisors (see below), whose sum is σ = 1088887702896. Its totient is φ = 155555386080.

The previous prime is 505555004837. The next prime is 505555005047. The reversal of 505555004838 is 838400555505.

505555004838 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505555004837) 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 7 ways as a sum of consecutive naturals, for example, 3240737133 + ... + 3240737288.

It is an arithmetic number, because the mean of its divisors is an integer number (68055481431).

Almost surely, 2^505555004838 is an apocalyptic number.

505555004838 is an abundant number, since it is smaller than the sum of its proper divisors (583332698058).

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

505555004838 is a wasteful number, since it uses less digits than its factorization.

505555004838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481474439.

The product of its (nonzero) digits is 2400000, while the sum is 48.

The spelling of 505555004838 in words is "five hundred five billion, five hundred fifty-five million, four thousand, eight hundred thirty-eight".