825789959 has 2 divisors, whose sum is σ = 825789960. Its totient is φ = 825789958.

The previous prime is 825789929. The next prime is 825789961. The reversal of 825789959 is 959987528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825789959 is a prime.

Together with 825789961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825789929) 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, 412894979 + 412894980.

It is an arithmetic number, because the mean of its divisors is an integer number (412894980).

Almost surely, 2^825789959 is an apocalyptic number.

825789959 is a deficient number, since it is larger than the sum of its proper divisors (1).

825789959 is an equidigital number, since it uses as much as digits as its factorization.

825789959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 62.

The square root of 825789959 is about 28736.5613635313. The cubic root of 825789959 is about 938.1879831550.

The spelling of 825789959 in words is "eight hundred twenty-five million, seven hundred eighty-nine thousand, nine hundred fifty-nine".