725160320 has 64 divisors (see below), whose sum is σ = 1741703040. Its totient is φ = 288706560.

The previous prime is 725160311. The next prime is 725160377. The reversal of 725160320 is 23061527.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 725160320.

It is a congruent number.

It is an unprimeable number.

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, 140180 + ... + 145260.

It is an arithmetic number, because the mean of its divisors is an integer number (27214110).

Almost surely, 2^725160320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725160320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870851520).

725160320 is an abundant number, since it is smaller than the sum of its proper divisors (1016542720).

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

725160320 is a wasteful number, since it uses less digits than its factorization.

725160320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323 (or 5311 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 725160320 is about 26928.8009387719. The cubic root of 725160320 is about 898.4171024450.

The spelling of 725160320 in words is "seven hundred twenty-five million, one hundred sixty thousand, three hundred twenty".