725725310117 has 4 divisors (see below), whose sum is σ = 725750344320. Its totient is φ = 725700275916.

The previous prime is 725725310113. The next prime is 725725310137. The reversal of 725725310117 is 711013527527.

725725310117 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: 711013527527 = 1567 ⋅453741881.

It is a cyclic number.

It is not a de Polignac number, because 725725310117 - 2² = 725725310113 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 (725725310113) 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, 12473567 + ... + 12531612.

It is an arithmetic number, because the mean of its divisors is an integer number (181437586080).

Almost surely, 2^725725310117 is an apocalyptic number.

It is an amenable number.

725725310117 is a deficient number, since it is larger than the sum of its proper divisors (25034203).

725725310117 is a wasteful number, since it uses less digits than its factorization.

725725310117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25034202.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 725725310117 in words is "seven hundred twenty-five billion, seven hundred twenty-five million, three hundred ten thousand, one hundred seventeen".