725108645 has 8 divisors (see below), whose sum is σ = 870748704. Its totient is φ = 579674704.

The previous prime is 725108627. The next prime is 725108669. The reversal of 725108645 is 546801527.

725108645 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 725108645 - 2¹⁴ = 725092261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725108599 and 725108608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43679 + ... + 57948.

It is an arithmetic number, because the mean of its divisors is an integer number (108843588).

Almost surely, 2^725108645 is an apocalyptic number.

It is an amenable number.

725108645 is a deficient number, since it is larger than the sum of its proper divisors (145640059).

725108645 is a wasteful number, since it uses less digits than its factorization.

725108645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103059.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 725108645 is about 26927.8414470971. The cubic root of 725108645 is about 898.3957615060.

The spelling of 725108645 in words is "seven hundred twenty-five million, one hundred eight thousand, six hundred forty-five".