725448961 has 8 divisors (see below), whose sum is σ = 745749504. Its totient is φ = 705428640.

The previous prime is 725448953. The next prime is 725448991. The reversal of 725448961 is 169844527.

725448961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725448961 - 2³ = 725448953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725448991) 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, 64801 + ... + 75166.

It is an arithmetic number, because the mean of its divisors is an integer number (93218688).

Almost surely, 2^725448961 is an apocalyptic number.

725448961 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

725448961 is a deficient number, since it is larger than the sum of its proper divisors (20300543).

725448961 is a wasteful number, since it uses less digits than its factorization.

725448961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140111.

The product of its digits is 483840, while the sum is 46.

The square root of 725448961 is about 26934.1597418594. The cubic root of 725448961 is about 898.5362878651.

The spelling of 725448961 in words is "seven hundred twenty-five million, four hundred forty-eight thousand, nine hundred sixty-one".