648225 has 36 divisors (see below), whose sum is σ = 1205776. Its totient is φ = 332640.

The previous prime is 648217. The next prime is 648229. The reversal of 648225 is 522846.

It is not a de Polignac number, because 648225 - 2³ = 648217 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (648229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9642 + ... + 9708.

2⁶⁴⁸²²⁵ is an apocalyptic number.

It is an amenable number.

648225 is a deficient number, since it is larger than the sum of its proper divisors (557551).

648225 is a wasteful number, since it uses less digits than its factorization.

648225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 118 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 648225 is about 805.1242140192. The cubic root of 648225 is about 86.5449886815.

The spelling of 648225 in words is "six hundred forty-eight thousand, two hundred twenty-five".