725272 has 8 divisors (see below), whose sum is σ = 1359900. Its totient is φ = 362632.

The previous prime is 725209. The next prime is 725273. The reversal of 725272 is 272527.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725273) by changing a digit.

725272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45322 + ... + 45337.

2⁷²⁵²⁷² is an apocalyptic number.

It is an amenable number.

725272 is a deficient number, since it is larger than the sum of its proper divisors (634628).

725272 is a wasteful number, since it uses less digits than its factorization.

725272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90665 (or 90661 counting only the distinct ones).

The product of its digits is 1960, while the sum is 25.

The square root of 725272 is about 851.6290272178. The cubic root of 725272 is about 89.8463221015.

Adding to 725272 its reverse (272527), we get a palindrome (997799).

The spelling of 725272 in words is "seven hundred twenty-five thousand, two hundred seventy-two".