725603 has 2 divisors, whose sum is σ = 725604. Its totient is φ = 725602.

The previous prime is 725597. The next prime is 725639. The reversal of 725603 is 306527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725603 - 2⁴ = 725587 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725603.

It is not a weakly prime, because it can be changed into another prime (725653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362801 + 362802.

It is an arithmetic number, because the mean of its divisors is an integer number (362802).

2⁷²⁵⁶⁰³ is an apocalyptic number.

725603 is a deficient number, since it is larger than the sum of its proper divisors (1).

725603 is an equidigital number, since it uses as much as digits as its factorization.

725603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 725603 is about 851.8233384922. The cubic root of 725603 is about 89.8599880593.

The spelling of 725603 in words is "seven hundred twenty-five thousand, six hundred three".