75325309 has 2 divisors, whose sum is σ = 75325310. Its totient is φ = 75325308.

The previous prime is 75325297. The next prime is 75325321. The reversal of 75325309 is 90352357.

It is a balanced prime because it is at equal distance from previous prime (75325297) and next prime (75325321).

It can be written as a sum of positive squares in only one way, i.e., 54804409 + 20520900 = 7403^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 75325309 - 2⁵ = 75325277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75325109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37662654 + 37662655.

It is an arithmetic number, because the mean of its divisors is an integer number (37662655).

Almost surely, 2^75325309 is an apocalyptic number.

It is an amenable number.

75325309 is a deficient number, since it is larger than the sum of its proper divisors (1).

75325309 is an equidigital number, since it uses as much as digits as its factorization.

75325309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 75325309 is about 8679.0154395530. The cubic root of 75325309 is about 422.3251781887.

It can be divided in two parts, 753 and 25309, that added together give a palindrome (26062).

The spelling of 75325309 in words is "seventy-five million, three hundred twenty-five thousand, three hundred nine".