3240805525 has 6 divisors (see below), whose sum is σ = 4018598882. Its totient is φ = 2592644400.

The previous prime is 3240805511. The next prime is 3240805537. The reversal of 3240805525 is 5255080423.

It can be written as a sum of positive squares in 3 ways, for example, as 831860964 + 2408944561 = 28842^2 + 49081^2 .

It is not a de Polignac number, because 3240805525 - 2²¹ = 3238708373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64816086 + ... + 64816135.

Almost surely, 2^3240805525 is an apocalyptic number.

It is an amenable number.

3240805525 is a deficient number, since it is larger than the sum of its proper divisors (777793357).

3240805525 is a wasteful number, since it uses less digits than its factorization.

3240805525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129632231 (or 129632226 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 3240805525 is about 56928.0732591575. The cubic root of 3240805525 is about 1479.8498637877.

Adding to 3240805525 its reverse (5255080423), we get a palindrome (8495885948).

The spelling of 3240805525 in words is "three billion, two hundred forty million, eight hundred five thousand, five hundred twenty-five".