655200 has 216 divisors, whose sum is σ = 2843568. Its totient is φ = 138240.

The previous prime is 655181. The next prime is 655211. The reversal of 655200 is 2556.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

655200 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 35 ways as a sum of consecutive naturals, for example, 50394 + ... + 50406.

2⁶⁵⁵²⁰⁰ is an apocalyptic number.

655200 is a gapful number since it is divisible by the number (60) 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 655200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1421784).

655200 is an abundant number, since it is smaller than the sum of its proper divisors (2188368).

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

655200 is a wasteful number, since it uses less digits than its factorization.

655200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 655200 is about 809.4442537939. Note that the first 3 decimals coincide. The cubic root of 655200 is about 86.8542943598.

Adding to 655200 its reverse (2556), we get a palindrome (657756).

The spelling of 655200 in words is "six hundred fifty-five thousand, two hundred".