655312 has 20 divisors (see below), whose sum is σ = 1451296. Its totient is φ = 280800.

The previous prime is 655301. The next prime is 655331. The reversal of 655312 is 213556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2814 + ... + 3037.

2⁶⁵⁵³¹² is an apocalyptic number.

It is an amenable number.

655312 is an abundant number, since it is smaller than the sum of its proper divisors (795984).

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

655312 is a wasteful number, since it uses less digits than its factorization.

655312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866 (or 5860 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 655312 is about 809.5134341072. The cubic root of 655312 is about 86.8592430405.

Adding to 655312 its reverse (213556), we get a palindrome (868868).

The spelling of 655312 in words is "six hundred fifty-five thousand, three hundred twelve".