8505533 has 2 divisors, whose sum is σ = 8505534. Its totient is φ = 8505532.

The previous prime is 8505527. The next prime is 8505547. The reversal of 8505533 is 3355058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4826809 + 3678724 = 2197^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 8505533 - 2⁴ = 8505517 is a prime.

It is a super-2 number, since 2×8505533² = 144688183228178, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8505496 and 8505505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8505433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4252766 + 4252767.

It is an arithmetic number, because the mean of its divisors is an integer number (4252767).

Almost surely, 2^8505533 is an apocalyptic number.

It is an amenable number.

8505533 is a deficient number, since it is larger than the sum of its proper divisors (1).

8505533 is an equidigital number, since it uses as much as digits as its factorization.

8505533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 8505533 is about 2916.4246947247. The cubic root of 8505533 is about 204.1270274473.

The spelling of 8505533 in words is "eight million, five hundred five thousand, five hundred thirty-three".