505505005 has 8 divisors (see below), whose sum is σ = 606735000. Its totient is φ = 404318016.

The previous prime is 505504997. The next prime is 505505009. The reversal of 505505005 is 500505505.

It can be written as a sum of positive squares in 4 ways, for example, as 218507524 + 286997481 = 14782^2 + 16941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505505005 - 2³ = 505504997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505505009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27471 + ... + 42019.

It is an arithmetic number, because the mean of its divisors is an integer number (75841875).

Almost surely, 2^505505005 is an apocalyptic number.

It is an amenable number.

505505005 is a deficient number, since it is larger than the sum of its proper divisors (101229995).

505505005 is a wasteful number, since it uses less digits than its factorization.

505505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21503.

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 505505005 is about 22483.4384603423. The cubic root of 505505005 is about 796.6027841806.

It can be divided in two parts, 50550 and 5005, that added together give a palindrome (55555).

The spelling of 505505005 in words is "five hundred five million, five hundred five thousand, five".