505011004 has 12 divisors (see below), whose sum is σ = 884205000. Its totient is φ = 252381008.

The previous prime is 505010983. The next prime is 505011011. The reversal of 505011004 is 400110505.

It is a happy number.

It is a super-2 number, since 2×505011004² = 510072228322176032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21679 + ... + 38470.

It is an arithmetic number, because the mean of its divisors is an integer number (73683750).

Almost surely, 2^505011004 is an apocalyptic number.

It is an amenable number.

505011004 is a deficient number, since it is larger than the sum of its proper divisors (379193996).

505011004 is a wasteful number, since it uses less digits than its factorization.

505011004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62252 (or 62250 counting only the distinct ones).

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

The square root of 505011004 is about 22472.4498886970. The cubic root of 505011004 is about 796.3432082274.

Adding to 505011004 its reverse (400110505), we get a palindrome (905121509).

The spelling of 505011004 in words is "five hundred five million, eleven thousand, four".