725562817 has 8 divisors (see below), whose sum is σ = 829388736. Its totient is φ = 621780432.

The previous prime is 725562793. The next prime is 725562821. The reversal of 725562817 is 718265527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725562817 - 2¹¹ = 725560769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725562857) 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 7 ways as a sum of consecutive naturals, for example, 41943 + ... + 56659.

It is an arithmetic number, because the mean of its divisors is an integer number (103673592).

Almost surely, 2^725562817 is an apocalyptic number.

It is an amenable number.

725562817 is a deficient number, since it is larger than the sum of its proper divisors (103825919).

725562817 is a wasteful number, since it uses less digits than its factorization.

725562817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21767.

The product of its digits is 235200, while the sum is 43.

The square root of 725562817 is about 26936.2732574497. The cubic root of 725562817 is about 898.5832925025.

The spelling of 725562817 in words is "seven hundred twenty-five million, five hundred sixty-two thousand, eight hundred seventeen".