655201 has 8 divisors (see below), whose sum is σ = 696384. Its totient is φ = 615120.

The previous prime is 655181. The next prime is 655211. The reversal of 655201 is 102556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655201 - 2¹¹ = 653153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (87048).

2⁶⁵⁵²⁰¹ is an apocalyptic number.

655201 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

655201 is a deficient number, since it is larger than the sum of its proper divisors (41183).

655201 is a wasteful number, since it uses less digits than its factorization.

655201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 655201 is about 809.4448715015. Note that the first 3 decimals coincide. The cubic root of 655201 is about 86.8543385470.

Adding to 655201 its reverse (102556), we get a palindrome (757757).

The spelling of 655201 in words is "six hundred fifty-five thousand, two hundred one".