6533873249 has 4 divisors (see below), whose sum is σ = 6623378436. Its totient is φ = 6444368064.

The previous prime is 6533873237. The next prime is 6533873251. The reversal of 6533873249 is 9423783356.

It is a happy number.

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 4814278225 + 1719595024 = 69385^2 + 41468^2 .

It is a cyclic number.

It is not a de Polignac number, because 6533873249 - 2⁴ = 6533873233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6533873197 and 6533873206.

It is not an unprimeable number, because it can be changed into a prime (6533872249) 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, 44752484 + ... + 44752629.

It is an arithmetic number, because the mean of its divisors is an integer number (1655844609).

Almost surely, 2^6533873249 is an apocalyptic number.

It is an amenable number.

6533873249 is a deficient number, since it is larger than the sum of its proper divisors (89505187).

6533873249 is an equidigital number, since it uses as much as digits as its factorization.

6533873249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89505186.

The product of its digits is 3265920, while the sum is 50.

The square root of 6533873249 is about 80832.3774795719. The cubic root of 6533873249 is about 1869.4918165944.

The spelling of 6533873249 in words is "six billion, five hundred thirty-three million, eight hundred seventy-three thousand, two hundred forty-nine".