725072 has 10 divisors (see below), whose sum is σ = 1404858. Its totient is φ = 362528.

The previous prime is 725071. The next prime is 725077. The reversal of 725072 is 270527.

It can be written as a sum of positive squares in only one way, i.e., 583696 + 141376 = 764^2 + 376^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725072.

It is not an unprimeable number, because it can be changed into a prime (725071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22643 + ... + 22674.

2⁷²⁵⁰⁷² is an apocalyptic number.

It is an amenable number.

725072 is a deficient number, since it is larger than the sum of its proper divisors (679786).

725072 is a wasteful number, since it uses less digits than its factorization.

725072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45325 (or 45319 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 725072 is about 851.5115971025. The cubic root of 725072 is about 89.8380627099.

Adding to 725072 its reverse (270527), we get a palindrome (995599).

The spelling of 725072 in words is "seven hundred twenty-five thousand, seventy-two".