1325807568 has 80 divisors (see below), whose sum is σ = 3821779200. Its totient is φ = 440052480.

The previous prime is 1325807557. The next prime is 1325807599. The reversal of 1325807568 is 8657085231.

1325807568 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 80 + 7 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96828 + ... + 109668.

It is an arithmetic number, because the mean of its divisors is an integer number (47772240).

Almost surely, 2^1325807568 is an apocalyptic number.

1325807568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325807568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910889600).

1325807568 is an abundant number, since it is smaller than the sum of its proper divisors (2495971632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325807568 is a wasteful number, since it uses less digits than its factorization.

1325807568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097 (or 13085 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 1325807568 is about 36411.6405562836. The cubic root of 1325807568 is about 1098.5677138221.

The spelling of 1325807568 in words is "one billion, three hundred twenty-five million, eight hundred seven thousand, five hundred sixty-eight".