505006004 has 6 divisors (see below), whose sum is σ = 883760514. Its totient is φ = 252503000.

The previous prime is 505006003. The next prime is 505006049. The reversal of 505006004 is 400600505.

It can be written as a sum of positive squares in only one way, i.e., 477422500 + 27583504 = 21850^2 + 5252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505006003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63125747 + ... + 63125754.

It is an arithmetic number, because the mean of its divisors is an integer number (147293419).

Almost surely, 2^505006004 is an apocalyptic number.

It is an amenable number.

505006004 is a deficient number, since it is larger than the sum of its proper divisors (378754510).

505006004 is a wasteful number, since it uses less digits than its factorization.

505006004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126251505 (or 126251503 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 505006004 is about 22472.3386410939. The cubic root of 505006004 is about 796.3405800805.

Adding to 505006004 its reverse (400600505), we get a palindrome (905606509).

The spelling of 505006004 in words is "five hundred five million, six thousand, four".