320025050405 has 8 divisors (see below), whose sum is σ = 406620064152. Its totient is φ = 240960037888.

The previous prime is 320025050393. The next prime is 320025050437. The reversal of 320025050405 is 504050520023.

It can be written as a sum of positive squares in 4 ways, for example, as 160295336161 + 159729714244 = 400369^2 + 399662^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320025050405 - 2¹² = 320025046309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1882500212 + ... + 1882500381.

It is an arithmetic number, because the mean of its divisors is an integer number (50827508019).

Almost surely, 2^320025050405 is an apocalyptic number.

It is an amenable number.

320025050405 is a deficient number, since it is larger than the sum of its proper divisors (86595013747).

320025050405 is a wasteful number, since it uses less digits than its factorization.

320025050405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765000615.

The product of its (nonzero) digits is 6000, while the sum is 26.

Adding to 320025050405 its reverse (504050520023), we get a palindrome (824075570428).

The spelling of 320025050405 in words is "three hundred twenty billion, twenty-five million, fifty thousand, four hundred five".