5245234021 has 2 divisors, whose sum is σ = 5245234022. Its totient is φ = 5245234020.

The previous prime is 5245233971. The next prime is 5245234039. The reversal of 5245234021 is 1204325425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4915412100 + 329821921 = 70110^2 + 18161^2 .

It is a cyclic number.

It is not a de Polignac number, because 5245234021 - 2⁷ = 5245233893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5245234061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622617010 + 2622617011.

It is an arithmetic number, because the mean of its divisors is an integer number (2622617011).

Almost surely, 2^5245234021 is an apocalyptic number.

It is an amenable number.

5245234021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5245234021 is an equidigital number, since it uses as much as digits as its factorization.

5245234021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 5245234021 is about 72423.9878838496. The cubic root of 5245234021 is about 1737.4872371852.

Adding to 5245234021 its reverse (1204325425), we get a palindrome (6449559446).

The spelling of 5245234021 in words is "five billion, two hundred forty-five million, two hundred thirty-four thousand, twenty-one".