725003 has 4 divisors (see below), whose sum is σ = 742728. Its totient is φ = 707280.

The previous prime is 724993. The next prime is 725009. The reversal of 725003 is 300527.

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 725003 - 2⁶ = 724939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8801 + ... + 8882.

It is an arithmetic number, because the mean of its divisors is an integer number (185682).

2⁷²⁵⁰⁰³ is an apocalyptic number.

725003 is a deficient number, since it is larger than the sum of its proper divisors (17725).

725003 is a wasteful number, since it uses less digits than its factorization.

725003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17724.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 725003 is about 851.4710799552. The cubic root of 725003 is about 89.8352128674.

The spelling of 725003 in words is "seven hundred twenty-five thousand, three".