725025841 has 4 divisors (see below), whose sum is σ = 744621172. Its totient is φ = 705430512.

The previous prime is 725025823. The next prime is 725025857. The reversal of 725025841 is 148520527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 693216241 + 31809600 = 26329^2 + 5640^2 .

It is a cyclic number.

It is not a de Polignac number, because 725025841 - 2¹⁷ = 724894769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725025797 and 725025806.

It is not an unprimeable number, because it can be changed into a prime (725025811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9797610 + ... + 9797683.

It is an arithmetic number, because the mean of its divisors is an integer number (186155293).

Almost surely, 2^725025841 is an apocalyptic number.

It is an amenable number.

725025841 is a deficient number, since it is larger than the sum of its proper divisors (19595331).

725025841 is a wasteful number, since it uses less digits than its factorization.

725025841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19595330.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 725025841 is about 26926.3038867201. The cubic root of 725025841 is about 898.3615626794.

The spelling of 725025841 in words is "seven hundred twenty-five million, twenty-five thousand, eight hundred forty-one".