825536617 has 2 divisors, whose sum is σ = 825536618. Its totient is φ = 825536616.

The previous prime is 825536531. The next prime is 825536629. The reversal of 825536617 is 716635528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 809061136 + 16475481 = 28444^2 + 4059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825536617 is a prime.

It is not a weakly prime, because it can be changed into another prime (825536687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412768308 + 412768309.

It is an arithmetic number, because the mean of its divisors is an integer number (412768309).

Almost surely, 2^825536617 is an apocalyptic number.

It is an amenable number.

825536617 is a deficient number, since it is larger than the sum of its proper divisors (1).

825536617 is an equidigital number, since it uses as much as digits as its factorization.

825536617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 825536617 is about 28732.1530171340. The cubic root of 825536617 is about 938.0920319076.

The spelling of 825536617 in words is "eight hundred twenty-five million, five hundred thirty-six thousand, six hundred seventeen".