2815500005 has 4 divisors (see below), whose sum is σ = 3378600012. Its totient is φ = 2252400000.

The previous prime is 2815499993. The next prime is 2815500031. The reversal of 2815500005 is 5000055182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 645617281 + 2169882724 = 25409^2 + 46582^2 .

It is not a de Polignac number, because 2815500005 - 2⁸ = 2815499749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281549996 + ... + 281550005.

It is an arithmetic number, because the mean of its divisors is an integer number (844650003).

Almost surely, 2^2815500005 is an apocalyptic number.

It is an amenable number.

2815500005 is a deficient number, since it is larger than the sum of its proper divisors (563100007).

2815500005 is an equidigital number, since it uses as much as digits as its factorization.

2815500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563100006.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2815500005 is about 53061.2853689015. The cubic root of 2815500005 is about 1412.0557516969.

Adding to 2815500005 its reverse (5000055182), we get a palindrome (7815555187).

The spelling of 2815500005 in words is "two billion, eight hundred fifteen million, five hundred thousand, five".