5201393909 has 2 divisors, whose sum is σ = 5201393910. Its totient is φ = 5201393908.

The previous prime is 5201393851. The next prime is 5201393971. The reversal of 5201393909 is 9093931025.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4323457009 + 877936900 = 65753^2 + 29630^2 .

It is a cyclic number.

It is not a de Polignac number, because 5201393909 - 2⁸ = 5201393653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5201393009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600696954 + 2600696955.

It is an arithmetic number, because the mean of its divisors is an integer number (2600696955).

Almost surely, 2^5201393909 is an apocalyptic number.

It is an amenable number.

5201393909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5201393909 is an equidigital number, since it uses as much as digits as its factorization.

5201393909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 5201393909 is about 72120.6898816144. The cubic root of 5201393909 is about 1732.6329992217.

The spelling of 5201393909 in words is "five billion, two hundred one million, three hundred ninety-three thousand, nine hundred nine".