2609265005 has 4 divisors (see below), whose sum is σ = 3131118012. Its totient is φ = 2087412000.

The previous prime is 2609264929. The next prime is 2609265013. The reversal of 2609265005 is 5005629062.

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 1717107844 + 892157161 = 41438^2 + 29869^2 .

It is not a de Polignac number, because 2609265005 - 2¹⁶ = 2609199469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260926496 + ... + 260926505.

It is an arithmetic number, because the mean of its divisors is an integer number (782779503).

Almost surely, 2^2609265005 is an apocalyptic number.

It is an amenable number.

2609265005 is a deficient number, since it is larger than the sum of its proper divisors (521853007).

2609265005 is an equidigital number, since it uses as much as digits as its factorization.

2609265005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521853006.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2609265005 is about 51080.9651925255. The cubic root of 2609265005 is about 1376.7002666833.

The spelling of 2609265005 in words is "two billion, six hundred nine million, two hundred sixty-five thousand, five".