655224 has 32 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 208736.

The previous prime is 655223. The next prime is 655229. The reversal of 655224 is 422556.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 655194 and 655203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (53460).

2⁶⁵⁵²²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855360).

655224 is an abundant number, since it is smaller than the sum of its proper divisors (1055496).

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

655224 is a wasteful number, since it uses less digits than its factorization.

655224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1215 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 655224 is about 809.4590786445. The cubic root of 655224 is about 86.8553548389.

The spelling of 655224 in words is "six hundred fifty-five thousand, two hundred twenty-four".