5125009 has 2 divisors, whose sum is σ = 5125010. Its totient is φ = 5125008.

The previous prime is 5124997. The next prime is 5125019. The reversal of 5125009 is 9005215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 394384 = 2175^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125009 - 2¹¹ = 5122961 is a prime.

5125009 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5125019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562504 + 2562505.

It is an arithmetic number, because the mean of its divisors is an integer number (2562505).

Almost surely, 2^5125009 is an apocalyptic number.

It is an amenable number.

5125009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5125009 is an equidigital number, since it uses as much as digits as its factorization.

5125009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 5125009 is about 2263.8482723010. The cubic root of 5125009 is about 172.4109629425.

The spelling of 5125009 in words is "five million, one hundred twenty-five thousand, nine".