5255243321 has 4 divisors (see below), whose sum is σ = 5258242932. Its totient is φ = 5252243712.

The previous prime is 5255243299. The next prime is 5255243327. The reversal of 5255243321 is 1233425525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100721296 + 5154522025 = 10036^2 + 71795^2 .

It is a cyclic number.

It is not a de Polignac number, because 5255243321 - 2¹⁸ = 5254981177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5255243327) 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 3 ways as a sum of consecutive naturals, for example, 1497176 + ... + 1500681.

It is an arithmetic number, because the mean of its divisors is an integer number (1314560733).

Almost surely, 2^5255243321 is an apocalyptic number.

It is an amenable number.

5255243321 is a deficient number, since it is larger than the sum of its proper divisors (2999611).

5255243321 is a wasteful number, since it uses less digits than its factorization.

5255243321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999610.

The product of its digits is 36000, while the sum is 32.

The square root of 5255243321 is about 72493.0570537621. The cubic root of 5255243321 is about 1738.5917306746.

Adding to 5255243321 its reverse (1233425525), we get a palindrome (6488668846).

The spelling of 5255243321 in words is "five billion, two hundred fifty-five million, two hundred forty-three thousand, three hundred twenty-one".