5231550340221 has 16 divisors (see below), whose sum is σ = 7085183339520. Its totient is φ = 3433207995200.

The previous prime is 5231550340217. The next prime is 5231550340223. The reversal of 5231550340221 is 1220430551325.

5231550340221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5231550340221 - 2² = 5231550340217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231550340223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49848861 + ... + 49953698.

It is an arithmetic number, because the mean of its divisors is an integer number (442823958720).

Almost surely, 2^{5231550340221} is an apocalyptic number.

It is an amenable number.

5231550340221 is a deficient number, since it is larger than the sum of its proper divisors (1853632999299).

5231550340221 is a wasteful number, since it uses less digits than its factorization.

5231550340221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99802836.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 5231550340221 its reverse (1220430551325), we get a palindrome (6451980891546).

The spelling of 5231550340221 in words is "five trillion, two hundred thirty-one billion, five hundred fifty million, three hundred forty thousand, two hundred twenty-one".