725657160 has 32 divisors (see below), whose sum is σ = 2176971840. Its totient is φ = 193508544.

The previous prime is 725657147. The next prime is 725657161. The reversal of 725657160 is 61756527.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (725657161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023452 + ... + 3023691.

It is an arithmetic number, because the mean of its divisors is an integer number (68030370).

Almost surely, 2^725657160 is an apocalyptic number.

It is an amenable number.

725657160 is an abundant number, since it is smaller than the sum of its proper divisors (1451314680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725657160 is a wasteful number, since it uses less digits than its factorization.

725657160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047157 (or 6047153 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 725657160 is about 26938.0244264497. The cubic root of 725657160 is about 898.6222376117.

The spelling of 725657160 in words is "seven hundred twenty-five million, six hundred fifty-seven thousand, one hundred sixty".