505530000505 has 16 divisors (see below), whose sum is σ = 607970998800. Its totient is φ = 403534706688.

The previous prime is 505530000457. The next prime is 505530000509. The reversal of 505530000505 is 505000035505.

It can be written as a sum of positive squares in 8 ways, for example, as 26162092009 + 479367908496 = 161747^2 + 692364^2 .

It is a cyclic number.

It is not a de Polignac number, because 505530000505 - 2¹³ = 505529992313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505530000509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5866471 + ... + 5952019.

It is an arithmetic number, because the mean of its divisors is an integer number (37998187425).

Almost surely, 2^505530000505 is an apocalyptic number.

It is an amenable number.

505530000505 is a deficient number, since it is larger than the sum of its proper divisors (102440998295).

505530000505 is a wasteful number, since it uses less digits than its factorization.

505530000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88140.

The product of its (nonzero) digits is 9375, while the sum is 28.

The spelling of 505530000505 in words is "five hundred five billion, five hundred thirty million, five hundred five", and thus it is an aban number.