725725310163 has 8 divisors (see below), whose sum is σ = 1105867139328. Its totient is φ = 414700177224.

The previous prime is 725725310137. The next prime is 725725310171. The reversal of 725725310163 is 361013527527.

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

It is not a de Polignac number, because 725725310163 - 2¹⁶ = 725725244627 is a prime.

It is a super-2 number, since 2×725725310163² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 17279174031 + ... + 17279174072.

It is an arithmetic number, because the mean of its divisors is an integer number (138233392416).

Almost surely, 2^725725310163 is an apocalyptic number.

725725310163 is a deficient number, since it is larger than the sum of its proper divisors (380141829165).

725725310163 is a wasteful number, since it uses less digits than its factorization.

725725310163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34558348113.

The product of its (nonzero) digits is 264600, while the sum is 42.

The spelling of 725725310163 in words is "seven hundred twenty-five billion, seven hundred twenty-five million, three hundred ten thousand, one hundred sixty-three".