1325508001 has 4 divisors (see below), whose sum is σ = 1395271600. Its totient is φ = 1255744404.

The previous prime is 1325507993. The next prime is 1325508011. The reversal of 1325508001 is 1008055231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1325508001 - 2³ = 1325507993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325508011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34881771 + ... + 34881808.

It is an arithmetic number, because the mean of its divisors is an integer number (348817900).

Almost surely, 2^1325508001 is an apocalyptic number.

It is an amenable number.

1325508001 is a deficient number, since it is larger than the sum of its proper divisors (69763599).

1325508001 is an equidigital number, since it uses as much as digits as its factorization.

1325508001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69763598.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1325508001 is about 36407.5267080861. The cubic root of 1325508001 is about 1098.4849669158.

The spelling of 1325508001 in words is "one billion, three hundred twenty-five million, five hundred eight thousand, one".