505005000505 has 8 divisors (see below), whose sum is σ = 607126162824. Its totient is φ = 403257225600.

The previous prime is 505005000503. The next prime is 505005000523. The reversal of 505005000505 is 505000500505.

It can be written as a sum of positive squares in 4 ways, for example, as 88345078441 + 416659922064 = 297229^2 + 645492^2 .

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

It is not a de Polignac number, because 505005000505 - 2¹ = 505005000503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505005000505.

It is not an unprimeable number, because it can be changed into a prime (505005000503) 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, 93343876 + ... + 93349285.

It is an arithmetic number, because the mean of its divisors is an integer number (75890770353).

Almost surely, 2^505005000505 is an apocalyptic number.

It is an amenable number.

505005000505 is a deficient number, since it is larger than the sum of its proper divisors (102121162319).

505005000505 is a wasteful number, since it uses less digits than its factorization.

505005000505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186693707.

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

The spelling of 505005000505 in words is "five hundred five billion, five million, five hundred five", and thus it is an aban number.