725485 has 8 divisors (see below), whose sum is σ = 875160. Its totient is φ = 577344.

The previous prime is 725479. The next prime is 725507. The reversal of 725485 is 584527.

It can be written as a sum of positive squares in 4 ways, for example, as 29929 + 695556 = 173^2 + 834^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725485 - 2⁷ = 725357 is a prime.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 1671 + ... + 2059.

It is an arithmetic number, because the mean of its divisors is an integer number (109395).

2⁷²⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

725485 is a deficient number, since it is larger than the sum of its proper divisors (149675).

725485 is a wasteful number, since it uses less digits than its factorization.

725485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its digits is 11200, while the sum is 31.

The square root of 725485 is about 851.7540724881. The cubic root of 725485 is about 89.8551166841.

The spelling of 725485 in words is "seven hundred twenty-five thousand, four hundred eighty-five".