725720612 has 12 divisors (see below), whose sum is σ = 1279706736. Its totient is φ = 360090120.

The previous prime is 725720603. The next prime is 725720629. The reversal of 725720612 is 216027527.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691958 + ... + 693005.

It is an arithmetic number, because the mean of its divisors is an integer number (106642228).

Almost surely, 2^725720612 is an apocalyptic number.

It is an amenable number.

725720612 is a deficient number, since it is larger than the sum of its proper divisors (553986124).

725720612 is a wasteful number, since it uses less digits than its factorization.

725720612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385098 (or 1385096 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 725720612 is about 26939.2021411177. The cubic root of 725720612 is about 898.6484289132.

The spelling of 725720612 in words is "seven hundred twenty-five million, seven hundred twenty thousand, six hundred twelve".