320025051355 has 4 divisors (see below), whose sum is σ = 384030061632. Its totient is φ = 256020041080.

The previous prime is 320025051331. The next prime is 320025051377. The reversal of 320025051355 is 553150520023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553150520023 = 22279 ⋅24828337.

It is not a de Polignac number, because 320025051355 - 2¹¹ = 320025049307 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 32002505131 + ... + 32002505140.

It is an arithmetic number, because the mean of its divisors is an integer number (96007515408).

Almost surely, 2^320025051355 is an apocalyptic number.

320025051355 is a deficient number, since it is larger than the sum of its proper divisors (64005010277).

320025051355 is an equidigital number, since it uses as much as digits as its factorization.

320025051355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64005010276.

The product of its (nonzero) digits is 22500, while the sum is 31.

Adding to 320025051355 its reverse (553150520023), we get a palindrome (873175571378).

The spelling of 320025051355 in words is "three hundred twenty billion, twenty-five million, fifty-one thousand, three hundred fifty-five".