2538355609 has 6 divisors (see below), whose sum is σ = 2622880410. Its totient is φ = 2456472240.

The previous prime is 2538355579. The next prime is 2538355613. The reversal of 2538355609 is 9065538352.

It can be written as a sum of positive squares in only one way, i.e., 2444808025 + 93547584 = 49445^2 + 9672^2 .

It is not a de Polignac number, because 2538355609 - 2⁷ = 2538355481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2538355619) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1319724 + ... + 1321645.

It is an arithmetic number, because the mean of its divisors is an integer number (437146735).

Almost surely, 2^2538355609 is an apocalyptic number.

It is an amenable number.

2538355609 is a deficient number, since it is larger than the sum of its proper divisors (84524801).

2538355609 is an equidigital number, since it uses as much as digits as its factorization.

2538355609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641431 (or 2641400 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The square root of 2538355609 is about 50382.0961155846. The cubic root of 2538355609 is about 1364.1144876354.

The spelling of 2538355609 in words is "two billion, five hundred thirty-eight million, three hundred fifty-five thousand, six hundred nine".