725770717 has 4 divisors (see below), whose sum is σ = 829452256. Its totient is φ = 622089180.

The previous prime is 725770697. The next prime is 725770751. The reversal of 725770717 is 717077527.

725770717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 717077527 = 17 ⋅42181031.

It is a cyclic number.

It is not a de Polignac number, because 725770717 - 2¹⁵ = 725737949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725770117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51840759 + ... + 51840772.

It is an arithmetic number, because the mean of its divisors is an integer number (207363064).

Almost surely, 2^725770717 is an apocalyptic number.

It is an amenable number.

725770717 is a deficient number, since it is larger than the sum of its proper divisors (103681539).

725770717 is a wasteful number, since it uses less digits than its factorization.

725770717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103681538.

The product of its (nonzero) digits is 168070, while the sum is 43.

The square root of 725770717 is about 26940.1320895054. The cubic root of 725770717 is about 898.6691098486.

The spelling of 725770717 in words is "seven hundred twenty-five million, seven hundred seventy thousand, seven hundred seventeen".