505131042 has 16 divisors (see below), whose sum is σ = 1087974720. Its totient is φ = 155424912.

The previous prime is 505131031. The next prime is 505131073. The reversal of 505131042 is 240131505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3237942 + ... + 3238097.

It is an arithmetic number, because the mean of its divisors is an integer number (67998420).

Almost surely, 2^505131042 is an apocalyptic number.

505131042 is an abundant number, since it is smaller than the sum of its proper divisors (582843678).

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

505131042 is a wasteful number, since it uses less digits than its factorization.

505131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476057.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 505131042 is about 22475.1205113566. The cubic root of 505131042 is about 796.4062985181.

Adding to 505131042 its reverse (240131505), we get a palindrome (745262547).

The spelling of 505131042 in words is "five hundred five million, one hundred thirty-one thousand, forty-two".