725443056 has 120 divisors (see below), whose sum is σ = 2195866400. Its totient is φ = 222248448.

The previous prime is 725443051. The next prime is 725443063. The reversal of 725443056 is 650344527.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 725443056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725443051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517845 + ... + 519243.

Almost surely, 2^725443056 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 725443056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1097933200).

725443056 is an abundant number, since it is smaller than the sum of its proper divisors (1470423344).

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

725443056 is a wasteful number, since it uses less digits than its factorization.

725443056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 725443056 is about 26934.0501224751. The cubic root of 725443056 is about 898.5338498939.

The spelling of 725443056 in words is "seven hundred twenty-five million, four hundred forty-three thousand, fifty-six".