5206144421 has 2 divisors, whose sum is σ = 5206144422. Its totient is φ = 5206144420.

The previous prime is 5206144393. The next prime is 5206144451. The reversal of 5206144421 is 1244416025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4693620100 + 512524321 = 68510^2 + 22639^2 .

It is a cyclic number.

It is not a de Polignac number, because 5206144421 - 2³⁰ = 4132402597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5206144451) 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 as a sum of consecutive naturals, namely, 2603072210 + 2603072211.

It is an arithmetic number, because the mean of its divisors is an integer number (2603072211).

Almost surely, 2^5206144421 is an apocalyptic number.

It is an amenable number.

5206144421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5206144421 is an equidigital number, since it uses as much as digits as its factorization.

5206144421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 5206144421 is about 72153.6168254925. The cubic root of 5206144421 is about 1733.1603187229.

The spelling of 5206144421 in words is "five billion, two hundred six million, one hundred forty-four thousand, four hundred twenty-one".