2800500505 has 16 divisors (see below), whose sum is σ = 3720832704. Its totient is φ = 2006326080.

The previous prime is 2800500503. The next prime is 2800500551. The reversal of 2800500505 is 5050050082.

It is not a de Polignac number, because 2800500505 - 2¹ = 2800500503 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 2800500505.

It is not an unprimeable number, because it can be changed into a prime (2800500503) 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, 376302 + ... + 383671.

It is an arithmetic number, because the mean of its divisors is an integer number (232552044).

Almost surely, 2^2800500505 is an apocalyptic number.

It is an amenable number.

2800500505 is a deficient number, since it is larger than the sum of its proper divisors (920332199).

2800500505 is a wasteful number, since it uses less digits than its factorization.

2800500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760056.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2800500505 is about 52919.7553376808. The cubic root of 2800500505 is about 1409.5437225584.

Adding to 2800500505 its reverse (5050050082), we get a palindrome (7850550587).

It can be divided in two parts, 2800 and 500505, that added together give a palindrome (503305).

The spelling of 2800500505 in words is "two billion, eight hundred million, five hundred thousand, five hundred five".