725588 has 6 divisors (see below), whose sum is σ = 1269786. Its totient is φ = 362792.

The previous prime is 725587. The next prime is 725597. The reversal of 725588 is 885527.

It can be written as a sum of positive squares in only one way, i.e., 521284 + 204304 = 722^2 + 452^2 .

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 725588.

It is not an unprimeable number, because it can be changed into a prime (725587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90695 + ... + 90702.

It is an arithmetic number, because the mean of its divisors is an integer number (211631).

2⁷²⁵⁵⁸⁸ is an apocalyptic number.

It is an amenable number.

725588 is a deficient number, since it is larger than the sum of its proper divisors (544198).

725588 is a wasteful number, since it uses less digits than its factorization.

725588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181401 (or 181399 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 725588 is about 851.8145338042. The cubic root of 725588 is about 89.8593688460.

The spelling of 725588 in words is "seven hundred twenty-five thousand, five hundred eighty-eight".