5224131421 has 2 divisors, whose sum is σ = 5224131422. Its totient is φ = 5224131420.

The previous prime is 5224131403. The next prime is 5224131443. The reversal of 5224131421 is 1241314225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5125844025 + 98287396 = 71595^2 + 9914^2 .

It is a cyclic number.

It is not a de Polignac number, because 5224131421 - 2¹⁷ = 5224000349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5224131461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2612065710 + 2612065711.

It is an arithmetic number, because the mean of its divisors is an integer number (2612065711).

Almost surely, 2^5224131421 is an apocalyptic number.

It is an amenable number.

5224131421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5224131421 is an equidigital number, since it uses as much as digits as its factorization.

5224131421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 5224131421 is about 72278.1531377221. The cubic root of 5224131421 is about 1735.1540219883.

Adding to 5224131421 its reverse (1241314225), we get a palindrome (6465445646).

The spelling of 5224131421 in words is "five billion, two hundred twenty-four million, one hundred thirty-one thousand, four hundred twenty-one".