525050005309 has 2 divisors, whose sum is σ = 525050005310. Its totient is φ = 525050005308.

The previous prime is 525050005289. The next prime is 525050005373. The reversal of 525050005309 is 903500050525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299999389284 + 225050616025 = 547722^2 + 474395^2 .

It is a cyclic number.

It is not a de Polignac number, because 525050005309 - 2⁹ = 525050004797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525050008309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262525002654 + 262525002655.

It is an arithmetic number, because the mean of its divisors is an integer number (262525002655).

Almost surely, 2^525050005309 is an apocalyptic number.

It is an amenable number.

525050005309 is a deficient number, since it is larger than the sum of its proper divisors (1).

525050005309 is an equidigital number, since it uses as much as digits as its factorization.

525050005309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 34.

The spelling of 525050005309 in words is "five hundred twenty-five billion, fifty million, five thousand, three hundred nine".