725812025 has 24 divisors (see below), whose sum is σ = 957896280. Its totient is φ = 543656960.

The previous prime is 725812013. The next prime is 725812037. The reversal of 725812025 is 520218527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (725812013) and next prime (725812037).

It can be written as a sum of positive squares in 12 ways, for example, as 6285049 + 719526976 = 2507^2 + 26824^2 .

It is not a de Polignac number, because 725812025 - 2¹⁴ = 725795641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725811982 and 725812000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79391 + ... + 88059.

It is an arithmetic number, because the mean of its divisors is an integer number (39912345).

Almost surely, 2^725812025 is an apocalyptic number.

It is an amenable number.

725812025 is a deficient number, since it is larger than the sum of its proper divisors (232084255).

725812025 is a wasteful number, since it uses less digits than its factorization.

725812025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893 (or 8888 counting only the distinct ones).

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

The square root of 725812025 is about 26940.8987415045. The cubic root of 725812025 is about 898.6861590895.

The spelling of 725812025 in words is "seven hundred twenty-five million, eight hundred twelve thousand, twenty-five".