725217376 has 48 divisors (see below), whose sum is σ = 1541305584. Its totient is φ = 333909504.

The previous prime is 725217343. The next prime is 725217377. The reversal of 725217376 is 673712527.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725217377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192406 + ... + 196138.

It is an arithmetic number, because the mean of its divisors is an integer number (32110533).

Almost surely, 2^725217376 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 725217376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770652792).

725217376 is an abundant number, since it is smaller than the sum of its proper divisors (816088208).

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

725217376 is a wasteful number, since it uses less digits than its factorization.

725217376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223 (or 4215 counting only the distinct ones).

The product of its digits is 123480, while the sum is 40.

The square root of 725217376 is about 26929.8603041308. The cubic root of 725217376 is about 898.4406644724.

It can be divided in two parts, 7252173 and 76, that added together give a square (7252249 = 2693²).

The spelling of 725217376 in words is "seven hundred twenty-five million, two hundred seventeen thousand, three hundred seventy-six".