5250605021 has 2 divisors, whose sum is σ = 5250605022. Its totient is φ = 5250605020.

The previous prime is 5250605011. The next prime is 5250605029. The reversal of 5250605021 is 1205060525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4588572121 + 662032900 = 67739^2 + 25730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5250605021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5250605029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625302510 + 2625302511.

It is an arithmetic number, because the mean of its divisors is an integer number (2625302511).

Almost surely, 2^5250605021 is an apocalyptic number.

It is an amenable number.

5250605021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5250605021 is an equidigital number, since it uses as much as digits as its factorization.

5250605021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 5250605021 is about 72461.0586522168. The cubic root of 5250605021 is about 1738.0800839777.

Adding to 5250605021 its reverse (1205060525), we get a palindrome (6455665546).

The spelling of 5250605021 in words is "five billion, two hundred fifty million, six hundred five thousand, twenty-one".