655248 has 80 divisors (see below), whose sum is σ = 1982016. Its totient is φ = 184320.

The previous prime is 655243. The next prime is 655261. The reversal of 655248 is 842556.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655248.

It is not an unprimeable number, because it can be changed into a prime (655241) by changing a digit.

655248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8940 + ... + 9012.

655248 is a Friedman number, since it can be written as (5*4^8-56)*2, using all its digits and the basic arithmetic operations.

2⁶⁵⁵²⁴⁸ is an apocalyptic number.

655248 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991008).

655248 is an abundant number, since it is smaller than the sum of its proper divisors (1326768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655248 is a wasteful number, since it uses less digits than its factorization.

655248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 106 counting only the distinct ones).

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

The square root of 655248 is about 809.4739032236. The cubic root of 655248 is about 86.8564152920.

It can be divided in two parts, 655 and 248, that added together give a triangular number (903 = T₄₂).

The spelling of 655248 in words is "six hundred fifty-five thousand, two hundred forty-eight".