825049 has 2 divisors, whose sum is σ = 825050. Its totient is φ = 825048.

The previous prime is 825047. The next prime is 825059. The reversal of 825049 is 940528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 235225 = 768^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 825049 - 2¹ = 825047 is a prime.

Together with 825047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (825047) 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, 412524 + 412525.

It is an arithmetic number, because the mean of its divisors is an integer number (412525).

2⁸²⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

825049 is a deficient number, since it is larger than the sum of its proper divisors (1).

825049 is an equidigital number, since it uses as much as digits as its factorization.

825049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 825049 is about 908.3220794410. The cubic root of 825049 is about 93.7907295618.

The spelling of 825049 in words is "eight hundred twenty-five thousand, forty-nine".