9825559 has 2 divisors, whose sum is σ = 9825560. Its totient is φ = 9825558.

The previous prime is 9825553. The next prime is 9825589. The reversal of 9825559 is 9555289.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9825559 - 2³ = 9825551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9825551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4912779 + 4912780.

It is an arithmetic number, because the mean of its divisors is an integer number (4912780).

Almost surely, 2^9825559 is an apocalyptic number.

9825559 is a deficient number, since it is larger than the sum of its proper divisors (1).

9825559 is an equidigital number, since it uses as much as digits as its factorization.

9825559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 43.

The square root of 9825559 is about 3134.5747717992. The cubic root of 9825559 is about 214.1833741367.

The spelling of 9825559 in words is "nine million, eight hundred twenty-five thousand, five hundred fifty-nine".