725759233 has 4 divisors (see below), whose sum is σ = 725877828. Its totient is φ = 725640640.

The previous prime is 725759173. The next prime is 725759267. The reversal of 725759233 is 332957527.

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

It can be written as a sum of positive squares in 2 ways, for example, as 74080449 + 651678784 = 8607^2 + 25528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725759233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725759233.

It is not an unprimeable number, because it can be changed into a prime (725759533) 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 in 3 ways as a sum of consecutive naturals, for example, 49588 + ... + 62533.

It is an arithmetic number, because the mean of its divisors is an integer number (181469457).

Almost surely, 2^725759233 is an apocalyptic number.

It is an amenable number.

725759233 is a deficient number, since it is larger than the sum of its proper divisors (118595).

725759233 is a wasteful number, since it uses less digits than its factorization.

725759233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118594.

The product of its digits is 396900, while the sum is 43.

The square root of 725759233 is about 26939.9189493955. The cubic root of 725759233 is about 898.6643698895.

The spelling of 725759233 in words is "seven hundred twenty-five million, seven hundred fifty-nine thousand, two hundred thirty-three".