725457713 has 4 divisors (see below), whose sum is σ = 727513188. Its totient is φ = 723402240.

The previous prime is 725457703. The next prime is 725457751. The reversal of 725457713 is 317754527.

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 311416609 + 414041104 = 17647^2 + 20348^2 .

It is a cyclic number.

It is not a de Polignac number, because 725457713 - 2¹⁶ = 725392177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725457703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027208 + ... + 1027913.

It is an arithmetic number, because the mean of its divisors is an integer number (181878297).

Almost surely, 2^725457713 is an apocalyptic number.

It is an amenable number.

725457713 is a deficient number, since it is larger than the sum of its proper divisors (2055475).

725457713 is a wasteful number, since it uses less digits than its factorization.

725457713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055474.

The product of its digits is 205800, while the sum is 41.

The square root of 725457713 is about 26934.3222116318. The cubic root of 725457713 is about 898.5399012404.

The spelling of 725457713 in words is "seven hundred twenty-five million, four hundred fifty-seven thousand, seven hundred thirteen".