825326657 has 2 divisors, whose sum is σ = 825326658. Its totient is φ = 825326656.

The previous prime is 825326639. The next prime is 825326683. The reversal of 825326657 is 756623528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722588161 + 102738496 = 26881^2 + 10136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825326657 is a prime.

It is not a weakly prime, because it can be changed into another prime (825326357) 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, 412663328 + 412663329.

It is an arithmetic number, because the mean of its divisors is an integer number (412663329).

Almost surely, 2^825326657 is an apocalyptic number.

It is an amenable number.

825326657 is a deficient number, since it is larger than the sum of its proper divisors (1).

825326657 is an equidigital number, since it uses as much as digits as its factorization.

825326657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 44.

The square root of 825326657 is about 28728.4990384113. The cubic root of 825326657 is about 938.0124963670.

The spelling of 825326657 in words is "eight hundred twenty-five million, three hundred twenty-six thousand, six hundred fifty-seven".