320255515252 has 24 divisors (see below), whose sum is σ = 569151398592. Its totient is φ = 157659600000.

The previous prime is 320255515249. The next prime is 320255515271. The reversal of 320255515252 is 252515552023.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2277874 + ... + 2414377.

It is an arithmetic number, because the mean of its divisors is an integer number (23714641608).

Almost surely, 2^320255515252 is an apocalyptic number.

It is an amenable number.

320255515252 is a deficient number, since it is larger than the sum of its proper divisors (248895883340).

320255515252 is a wasteful number, since it uses less digits than its factorization.

320255515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692519 (or 4692517 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 320255515252 in words is "three hundred twenty billion, two hundred fifty-five million, five hundred fifteen thousand, two hundred fifty-two".