1328067625 has 16 divisors (see below), whose sum is σ = 1754926992. Its totient is φ = 999955200.

The previous prime is 1328067623. The next prime is 1328067641. The reversal of 1328067625 is 5267608231.

It can be written as a sum of positive squares in 8 ways, for example, as 601819024 + 726248601 = 24532^2 + 26949^2 .

It is not a de Polignac number, because 1328067625 - 2¹ = 1328067623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328067623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310362 + ... + 314611.

It is an arithmetic number, because the mean of its divisors is an integer number (109682937).

Almost surely, 2^1328067625 is an apocalyptic number.

It is an amenable number.

1328067625 is a deficient number, since it is larger than the sum of its proper divisors (426859367).

1328067625 is an equidigital number, since it uses as much as digits as its factorization.

1328067625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625005 (or 624995 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1328067625 is about 36442.6621557756. The cubic root of 1328067625 is about 1099.1915892248.

The spelling of 1328067625 in words is "one billion, three hundred twenty-eight million, sixty-seven thousand, six hundred twenty-five".