2445259009 has 4 divisors (see below), whose sum is σ = 2446978816. Its totient is φ = 2443539204.

The previous prime is 2445258967. The next prime is 2445259043. The reversal of 2445259009 is 9009525442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9009525442 = 2 ⋅4504762721.

It is a cyclic number.

It is not a de Polignac number, because 2445259009 - 2¹⁵ = 2445226241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2445259309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857769 + ... + 860614.

It is an arithmetic number, because the mean of its divisors is an integer number (611744704).

Almost surely, 2^2445259009 is an apocalyptic number.

It is an amenable number.

2445259009 is a deficient number, since it is larger than the sum of its proper divisors (1719807).

2445259009 is a wasteful number, since it uses less digits than its factorization.

2445259009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719806.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2445259009 is about 49449.5602508253. The cubic root of 2445259009 is about 1347.2296198422.

The spelling of 2445259009 in words is "two billion, four hundred forty-five million, two hundred fifty-nine thousand, nine".