648325 has 6 divisors (see below), whose sum is σ = 803954. Its totient is φ = 518640.

The previous prime is 648317. The next prime is 648331. The reversal of 648325 is 523846.

It can be written as a sum of positive squares in 3 ways, for example, as 6724 + 641601 = 82^2 + 801^2 .

It is not a de Polignac number, because 648325 - 2³ = 648317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648293 and 648302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12942 + ... + 12991.

2⁶⁴⁸³²⁵ is an apocalyptic number.

It is an amenable number.

648325 is a deficient number, since it is larger than the sum of its proper divisors (155629).

648325 is a wasteful number, since it uses less digits than its factorization.

648325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25943 (or 25938 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 648325 is about 805.1863138430. The cubic root of 648325 is about 86.5494388101.

The spelling of 648325 in words is "six hundred forty-eight thousand, three hundred twenty-five".