9825553 has 2 divisors, whose sum is σ = 9825554. Its totient is φ = 9825552.

The previous prime is 9825551. The next prime is 9825559. The reversal of 9825553 is 3555289.

9825553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 16129 = 3132^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 9825553 - 2¹ = 9825551 is a prime.

Together with 9825551, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 9² + 8³ + 2⁸ + 5 + 5² + 5¹⁰ + 3¹⁰ .

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, 4912776 + 4912777.

It is an arithmetic number, because the mean of its divisors is an integer number (4912777).

Almost surely, 2^9825553 is an apocalyptic number.

It is an amenable number.

9825553 is a deficient number, since it is larger than the sum of its proper divisors (1).

9825553 is an equidigital number, since it uses as much as digits as its factorization.

9825553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

The square root of 9825553 is about 3134.5738147314. The cubic root of 9825553 is about 214.1833305395.

It can be divided in two parts, 98 and 25553, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 9825553 in words is "nine million, eight hundred twenty-five thousand, five hundred fifty-three".