2651000005 has 8 divisors (see below), whose sum is σ = 3204421272. Its totient is φ = 2105319168.

The previous prime is 2650999933. The next prime is 2651000039. The reversal of 2651000005 is 5000001562.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 104182849 + 2546817156 = 10207^2 + 50466^2 .

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 2651000005 - 2¹¹ = 2650997957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934352 + ... + 1935721.

It is an arithmetic number, because the mean of its divisors is an integer number (400552659).

Almost surely, 2^2651000005 is an apocalyptic number.

It is an amenable number.

2651000005 is a deficient number, since it is larger than the sum of its proper divisors (553421267).

2651000005 is a wasteful number, since it uses less digits than its factorization.

2651000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870215.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2651000005 is about 51487.8626959791. The cubic root of 2651000005 is about 1384.0015489767.

Adding to 2651000005 its reverse (5000001562), we get a palindrome (7651001567).

The spelling of 2651000005 in words is "two billion, six hundred fifty-one million, five", and thus it is an aban number.