505505005505 has 8 divisors (see below), whose sum is σ = 606651164712. Its totient is φ = 404373899008.

The previous prime is 505505005493. The next prime is 505505005507. The reversal of 505505005505 is 505500505505.

It can be written as a sum of positive squares in 4 ways, for example, as 190190187664 + 315314817841 = 436108^2 + 561529^2 .

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 505505005505 - 2⁸ = 505505005249 is a prime.

It is a super-2 number, since 2×505505005505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505505005507) 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, 3689162 + ... + 3823731.

It is an arithmetic number, because the mean of its divisors is an integer number (75831395589).

Almost surely, 2^505505005505 is an apocalyptic number.

It is an amenable number.

505505005505 is a deficient number, since it is larger than the sum of its proper divisors (101146159207).

505505005505 is a wasteful number, since it uses less digits than its factorization.

505505005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526355.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 505505005505 in words is "five hundred five billion, five hundred five million, five thousand, five hundred five".