5125609 has 2 divisors, whose sum is σ = 5125610. Its totient is φ = 5125608.

The previous prime is 5125597. The next prime is 5125639. The reversal of 5125609 is 9065215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3052009 + 2073600 = 1747^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125609 - 2²¹ = 3028457 is a prime.

It is not a weakly prime, because it can be changed into another prime (5125639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562804 + 2562805.

It is an arithmetic number, because the mean of its divisors is an integer number (2562805).

Almost surely, 2^5125609 is an apocalyptic number.

It is an amenable number.

5125609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5125609 is an equidigital number, since it uses as much as digits as its factorization.

5125609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 5125609 is about 2263.9807861376. The cubic root of 5125609 is about 172.4176909008.

The spelling of 5125609 in words is "five million, one hundred twenty-five thousand, six hundred nine".