825603 has 4 divisors (see below), whose sum is σ = 1100808. Its totient is φ = 550400.

The previous prime is 825593. The next prime is 825611. The reversal of 825603 is 306528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 825603 - 2⁸ = 825347 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (825613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137598 + ... + 137603.

It is an arithmetic number, because the mean of its divisors is an integer number (275202).

2⁸²⁵⁶⁰³ is an apocalyptic number.

825603 is a deficient number, since it is larger than the sum of its proper divisors (275205).

825603 is a wasteful number, since it uses less digits than its factorization.

825603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275204.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 825603 is about 908.6269861720. The cubic root of 825603 is about 93.8117175833.

The spelling of 825603 in words is "eight hundred twenty-five thousand, six hundred three".