725756 has 6 divisors (see below), whose sum is σ = 1270080. Its totient is φ = 362876.

The previous prime is 725749. The next prime is 725789. The reversal of 725756 is 657527.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725756.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 90716 + ... + 90723.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

2⁷²⁵⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

725756 is a deficient number, since it is larger than the sum of its proper divisors (544324).

725756 is a wasteful number, since it uses less digits than its factorization.

725756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181443 (or 181441 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 725756 is about 851.9131411124. The cubic root of 725756 is about 89.8663035477.

The spelling of 725756 in words is "seven hundred twenty-five thousand, seven hundred fifty-six".