725812250 has 16 divisors (see below), whose sum is σ = 1358721000. Its totient is φ = 290324800.

The previous prime is 725812247. The next prime is 725812267. The reversal of 725812250 is 52218527.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 127667401 + 598144849 = 11299^2 + 24457^2 .

It is a Curzon 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, 1451375 + ... + 1451874.

Almost surely, 2^725812250 is an apocalyptic number.

725812250 is a deficient number, since it is larger than the sum of its proper divisors (632908750).

725812250 is a wasteful number, since it uses less digits than its factorization.

725812250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903266 (or 2903256 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 725812250 is about 26940.9029173114. The cubic root of 725812250 is about 898.6862519530.

The spelling of 725812250 in words is "seven hundred twenty-five million, eight hundred twelve thousand, two hundred fifty".