725643113 has 16 divisors (see below), whose sum is σ = 828374400. Its totient is φ = 629703936.

The previous prime is 725643101. The next prime is 725643143. The reversal of 725643113 is 311346527.

725643113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725643113 - 2⁶ = 725643049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725643113.

It is not an unprimeable number, because it can be changed into a prime (725643143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308006 + ... + 310352.

It is an arithmetic number, because the mean of its divisors is an integer number (51773400).

Almost surely, 2^725643113 is an apocalyptic number.

It is an amenable number.

725643113 is a deficient number, since it is larger than the sum of its proper divisors (102731287).

725643113 is a wasteful number, since it uses less digits than its factorization.

725643113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776.

The product of its digits is 15120, while the sum is 32.

The square root of 725643113 is about 26937.7636970852. The cubic root of 725643113 is about 898.6164391765.

The spelling of 725643113 in words is "seven hundred twenty-five million, six hundred forty-three thousand, one hundred thirteen".