825229 has 2 divisors, whose sum is σ = 825230. Its totient is φ = 825228.

The previous prime is 825203. The next prime is 825241. The reversal of 825229 is 922528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522729 + 302500 = 723^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 825229 - 2⁷ = 825101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 825197 and 825206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825259) 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, 412614 + 412615.

It is an arithmetic number, because the mean of its divisors is an integer number (412615).

2⁸²⁵²²⁹ is an apocalyptic number.

It is an amenable number.

825229 is a deficient number, since it is larger than the sum of its proper divisors (1).

825229 is an equidigital number, since it uses as much as digits as its factorization.

825229 is an odious number, because the sum of its binary digits is odd.

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

The square root of 825229 is about 908.4211578337. The cubic root of 825229 is about 93.7975498047.

It can be divided in two parts, 8252 and 29, that added together give a square (8281 = 91²).

The spelling of 825229 in words is "eight hundred twenty-five thousand, two hundred twenty-nine".