255321303524321 has 8 divisors (see below), whose sum is σ = 279662279722920. Its totient is φ = 232016113547008.

The previous prime is 255321303524303. The next prime is 255321303524341. The reversal of 255321303524321 is 123425303123552.

It can be written as a sum of positive squares in 4 ways, for example, as 154164778848721 + 101156524675600 = 12416311^2 + 10057660^2 .

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

It is not a de Polignac number, because 255321303524321 - 2²⁶ = 255321236415457 is a prime.

It is a super-2 number, since 2×255321303524321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255321303524341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258946554806 + ... + 258946555791.

It is an arithmetic number, because the mean of its divisors is an integer number (34957784965365).

Almost surely, 2^{255321303524321} is an apocalyptic number.

It is an amenable number.

255321303524321 is a deficient number, since it is larger than the sum of its proper divisors (24340976198599).

255321303524321 is a wasteful number, since it uses less digits than its factorization.

255321303524321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517893110643.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 255321303524321 its reverse (123425303123552), we get a palindrome (378746606647873).

The spelling of 255321303524321 in words is "two hundred fifty-five trillion, three hundred twenty-one billion, three hundred three million, five hundred twenty-four thousand, three hundred twenty-one".