648255 has 16 divisors (see below), whose sum is σ = 1082880. Its totient is φ = 330528.

The previous prime is 648239. The next prime is 648257. The reversal of 648255 is 552846.

It is not a de Polignac number, because 648255 - 2⁴ = 648239 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648255.

It is not an unprimeable number, because it can be changed into a prime (648257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (67680).

2⁶⁴⁸²⁵⁵ is an apocalyptic number.

648255 is a deficient number, since it is larger than the sum of its proper divisors (434625).

648255 is a wasteful number, since it uses less digits than its factorization.

648255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910.

The product of its digits is 9600, while the sum is 30.

The square root of 648255 is about 805.1428444692. The cubic root of 648255 is about 86.5463237681.

It can be divided in two parts, 648 and 255, that added together give a triangular number (903 = T₄₂).

The spelling of 648255 in words is "six hundred forty-eight thousand, two hundred fifty-five".