825213 has 8 divisors (see below), whose sum is σ = 1126048. Its totient is φ = 537264.

The previous prime is 825203. The next prime is 825229. The reversal of 825213 is 312528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 825213 - 2⁹ = 824701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 825213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825203) 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 in 7 ways as a sum of consecutive naturals, for example, 3070 + ... + 3327.

It is an arithmetic number, because the mean of its divisors is an integer number (140756).

2⁸²⁵²¹³ is an apocalyptic number.

It is an amenable number.

825213 is a deficient number, since it is larger than the sum of its proper divisors (300835).

825213 is a wasteful number, since it uses less digits than its factorization.

825213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its digits is 480, while the sum is 21.

The square root of 825213 is about 908.4123513031. The cubic root of 825213 is about 93.7969436010.

The spelling of 825213 in words is "eight hundred twenty-five thousand, two hundred thirteen".