1329395425 has 6 divisors (see below), whose sum is σ = 1648450358. Its totient is φ = 1063516320.

The previous prime is 1329395411. The next prime is 1329395437. The reversal of 1329395425 is 5245939231.

It can be written as a sum of positive squares in 3 ways, for example, as 102434641 + 1226960784 = 10121^2 + 35028^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1329395425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26587884 + ... + 26587933.

Almost surely, 2^1329395425 is an apocalyptic number.

It is an amenable number.

1329395425 is a deficient number, since it is larger than the sum of its proper divisors (319054933).

1329395425 is an equidigital number, since it uses as much as digits as its factorization.

1329395425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53175827 (or 53175822 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 1329395425 is about 36460.8752637673. The cubic root of 1329395425 is about 1099.5577905714.

The spelling of 1329395425 in words is "one billion, three hundred twenty-nine million, three hundred ninety-five thousand, four hundred twenty-five".