725248 has 18 divisors (see below), whose sum is σ = 1448174. Its totient is φ = 362496.

The previous prime is 725209. The next prime is 725273. The reversal of 725248 is 842527.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 135424 = 768^2 + 368^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161 + ... + 1672.

2⁷²⁵²⁴⁸ is an apocalyptic number.

It is an amenable number.

725248 is a deficient number, since it is larger than the sum of its proper divisors (722926).

725248 is an equidigital number, since it uses as much as digits as its factorization.

725248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2835 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 725248 is about 851.6149364590. The cubic root of 725248 is about 89.8453310547.

The spelling of 725248 in words is "seven hundred twenty-five thousand, two hundred forty-eight".