3248643725 has 6 divisors (see below), whose sum is σ = 4028318250. Its totient is φ = 2598914960.

The previous prime is 3248643721. The next prime is 3248643751. The reversal of 3248643725 is 5273468423.

It can be written as a sum of positive squares in 3 ways, for example, as 90878089 + 3157765636 = 9533^2 + 56194^2 .

It is not a de Polignac number, because 3248643725 - 2² = 3248643721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3248643721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64972850 + ... + 64972899.

It is an arithmetic number, because the mean of its divisors is an integer number (671386375).

Almost surely, 2^3248643725 is an apocalyptic number.

It is an amenable number.

3248643725 is a deficient number, since it is larger than the sum of its proper divisors (779674525).

3248643725 is a wasteful number, since it uses less digits than its factorization.

3248643725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129945759 (or 129945754 counting only the distinct ones).

The product of its digits is 967680, while the sum is 44.

The square root of 3248643725 is about 56996.8746950217. The cubic root of 3248643725 is about 1481.0419563368.

The spelling of 3248643725 in words is "three billion, two hundred forty-eight million, six hundred forty-three thousand, seven hundred twenty-five".