505555403042 has 8 divisors (see below), whose sum is σ = 758521428816. Its totient is φ = 252714926772.

The previous prime is 505555403027. The next prime is 505555403063. The reversal of 505555403042 is 240304555505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 505555402987 and 505555403005.

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 3 ways as a sum of consecutive naturals, for example, 31377308 + ... + 31393415.

It is an arithmetic number, because the mean of its divisors is an integer number (94815178602).

Almost surely, 2^505555403042 is an apocalyptic number.

505555403042 is a deficient number, since it is larger than the sum of its proper divisors (252966025774).

505555403042 is a wasteful number, since it uses less digits than its factorization.

505555403042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62774752.

The product of its (nonzero) digits is 300000, while the sum is 38.

Adding to 505555403042 its reverse (240304555505), we get a palindrome (745859958547).

The spelling of 505555403042 in words is "five hundred five billion, five hundred fifty-five million, four hundred three thousand, forty-two".