725547040 has 24 divisors (see below), whose sum is σ = 1714105260. Its totient is φ = 290218752.

The previous prime is 725546999. The next prime is 725547047. The reversal of 725547040 is 40745527.

725547040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 678706704 + 46840336 = 26052^2 + 6844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 725546987 and 725547005.

It is not an unprimeable number, because it can be changed into a prime (725547047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267175 + ... + 2267494.

Almost surely, 2^725547040 is an apocalyptic number.

It is an amenable number.

725547040 is an abundant number, since it is smaller than the sum of its proper divisors (988558220).

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

725547040 is a wasteful number, since it uses less digits than its factorization.

725547040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534684 (or 4534676 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 725547040 is about 26935.9803979733. The cubic root of 725547040 is about 898.5767793741.

The spelling of 725547040 in words is "seven hundred twenty-five million, five hundred forty-seven thousand, forty".