505021012 has 12 divisors (see below), whose sum is σ = 896234976. Its totient is φ = 248953880.

The previous prime is 505021003. The next prime is 505021037. The reversal of 505021012 is 210120505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888838 + ... + 889405.

It is an arithmetic number, because the mean of its divisors is an integer number (74686248).

Almost surely, 2^505021012 is an apocalyptic number.

It is an amenable number.

505021012 is a deficient number, since it is larger than the sum of its proper divisors (391213964).

505021012 is a wasteful number, since it uses less digits than its factorization.

505021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778318 (or 1778316 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 505021012 is about 22472.6725602453. The cubic root of 505021012 is about 796.3484686739.

Adding to 505021012 its reverse (210120505), we get a palindrome (715141517).

It can be divided in two parts, 5050 and 21012, that added together give a palindrome (26062).

The spelling of 505021012 in words is "five hundred five million, twenty-one thousand, twelve".