725229 has 12 divisors (see below), whose sum is σ = 1065532. Its totient is φ = 475200.

The previous prime is 725209. The next prime is 725273. The reversal of 725229 is 922527.

It is a happy number.

725229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 396900 = 573^2 + 630^2 .

It is not a de Polignac number, because 725229 - 2¹¹ = 723181 is a prime.

It is a Duffinian number.

725229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112 + ... + 1209.

2⁷²⁵²²⁹ is an apocalyptic number.

It is an amenable number.

725229 is a deficient number, since it is larger than the sum of its proper divisors (340303).

725229 is a wasteful number, since it uses less digits than its factorization.

725229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1385 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 725229 is about 851.6037811095. The cubic root of 725229 is about 89.8445464605.

The spelling of 725229 in words is "seven hundred twenty-five thousand, two hundred twenty-nine".