4321252609 has 2 divisors, whose sum is σ = 4321252610. Its totient is φ = 4321252608.

The previous prime is 4321252603. The next prime is 4321252693. The reversal of 4321252609 is 9062521234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4315833025 + 5419584 = 65695^2 + 2328^2 .

It is a cyclic number.

It is not a de Polignac number, because 4321252609 - 2³ = 4321252601 is a prime.

It is a super-2 number, since 2×4321252609² = 37346448221578613762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4321252601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160626304 + 2160626305.

It is an arithmetic number, because the mean of its divisors is an integer number (2160626305).

Almost surely, 2^4321252609 is an apocalyptic number.

It is an amenable number.

4321252609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321252609 is an equidigital number, since it uses as much as digits as its factorization.

4321252609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 4321252609 is about 65736.2351294931. The cubic root of 4321252609 is about 1628.8079669645.

The spelling of 4321252609 in words is "four billion, three hundred twenty-one million, two hundred fifty-two thousand, six hundred nine".