8925509 has 2 divisors, whose sum is σ = 8925510. Its totient is φ = 8925508.

The previous prime is 8925487. The next prime is 8925523. The reversal of 8925509 is 9055298.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8392609 + 532900 = 2897^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 8925509 - 2¹⁶ = 8859973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8925529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4462754 + 4462755.

It is an arithmetic number, because the mean of its divisors is an integer number (4462755).

Almost surely, 2^8925509 is an apocalyptic number.

It is an amenable number.

8925509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8925509 is an equidigital number, since it uses as much as digits as its factorization.

8925509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 8925509 is about 2987.5590370736. The cubic root of 8925509 is about 207.4329119741.

The spelling of 8925509 in words is "eight million, nine hundred twenty-five thousand, five hundred nine".