505003555040 has 48 divisors (see below), whose sum is σ = 1196957239632. Its totient is φ = 201343417344.

The previous prime is 505003555033. The next prime is 505003555073. The reversal of 505003555040 is 40555300505.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 505003554988 and 505003555006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091389 + ... + 5189628.

It is an arithmetic number, because the mean of its divisors is an integer number (24936609159).

Almost surely, 2^505003555040 is an apocalyptic number.

It is an amenable number.

505003555040 is an abundant number, since it is smaller than the sum of its proper divisors (691953684592).

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

505003555040 is a wasteful number, since it uses less digits than its factorization.

505003555040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281339 (or 10281331 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

Adding to 505003555040 its reverse (40555300505), we get a palindrome (545558855545).

The spelling of 505003555040 in words is "five hundred five billion, three million, five hundred fifty-five thousand, forty".