725971113 has 72 divisors (see below), whose sum is σ = 1295030880. Its totient is φ = 400755600.

The previous prime is 725971109. The next prime is 725971159. The reversal of 725971113 is 311179527.

It is not a de Polignac number, because 725971113 - 2² = 725971109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725971163) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1271118 + ... + 1271688.

It is an arithmetic number, because the mean of its divisors is an integer number (17986540).

Almost surely, 2^725971113 is an apocalyptic number.

It is an amenable number.

725971113 is a deficient number, since it is larger than the sum of its proper divisors (569059767).

725971113 is a wasteful number, since it uses less digits than its factorization.

725971113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 612 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 725971113 is about 26943.8511167205. The cubic root of 725971113 is about 898.7518141693.

The spelling of 725971113 in words is "seven hundred twenty-five million, nine hundred seventy-one thousand, one hundred thirteen".