5235243809 has 8 divisors (see below), whose sum is σ = 5322475560. Its totient is φ = 5148057600.

The previous prime is 5235243803. The next prime is 5235243817. The reversal of 5235243809 is 9083425325.

It can be written as a sum of positive squares in 4 ways, for example, as 1218219409 + 4017024400 = 34903^2 + 63380^2 .

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 5235243809 - 2²⁰ = 5234195233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5235243803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283169 + ... + 301089.

It is an arithmetic number, because the mean of its divisors is an integer number (665309445).

Almost surely, 2^5235243809 is an apocalyptic number.

It is an amenable number.

5235243809 is a deficient number, since it is larger than the sum of its proper divisors (87231751).

5235243809 is a wasteful number, since it uses less digits than its factorization.

5235243809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22771.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5235243809 is about 72354.9846866130. The cubic root of 5235243809 is about 1736.3834480097.

The spelling of 5235243809 in words is "five billion, two hundred thirty-five million, two hundred forty-three thousand, eight hundred nine".