505042240506 has 32 divisors (see below), whose sum is σ = 1010806594560. Its totient is φ = 168227116464.

The previous prime is 505042240501. The next prime is 505042240529. The reversal of 505042240506 is 605042240505.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505042240501) 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 15 ways as a sum of consecutive naturals, for example, 75342351 + ... + 75349053.

It is an arithmetic number, because the mean of its divisors is an integer number (31587706080).

Almost surely, 2^505042240506 is an apocalyptic number.

505042240506 is an abundant number, since it is smaller than the sum of its proper divisors (505764354054).

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

505042240506 is a wasteful number, since it uses less digits than its factorization.

505042240506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810.

The product of its (nonzero) digits is 48000, while the sum is 33.

Subtracting 505042240506 from its reverse (605042240505), we obtain a palindrome (99999999999).

The spelling of 505042240506 in words is "five hundred five billion, forty-two million, two hundred forty thousand, five hundred six".