250345312321 has 6 divisors (see below), whose sum is σ = 271083977430. Its totient is φ = 231087980448.

The previous prime is 250345312319. The next prime is 250345312363. The reversal of 250345312321 is 123213543052.

It can be written as a sum of positive squares in 3 ways, for example, as 16374785296 + 233970527025 = 127964^2 + 483705^2 .

It is not a de Polignac number, because 250345312321 - 2¹ = 250345312319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250345312381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740666436 + ... + 740666773.

It is an arithmetic number, because the mean of its divisors is an integer number (45180662905).

Almost surely, 2^250345312321 is an apocalyptic number.

It is an amenable number.

250345312321 is a deficient number, since it is larger than the sum of its proper divisors (20738665109).

250345312321 is a wasteful number, since it uses less digits than its factorization.

250345312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481333235 (or 1481333222 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 250345312321 its reverse (123213543052), we get a palindrome (373558855373).

The spelling of 250345312321 in words is "two hundred fifty billion, three hundred forty-five million, three hundred twelve thousand, three hundred twenty-one".