655612 has 12 divisors (see below), whose sum is σ = 1153656. Its totient is φ = 326000.

The previous prime is 655601. The next prime is 655637. The reversal of 655612 is 216556.

It is a congruent number.

It is an unprimeable number.

655612 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 3 ways as a sum of consecutive naturals, for example, 678 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (96138).

2⁶⁵⁵⁶¹² is an apocalyptic number.

It is an amenable number.

655612 is a deficient number, since it is larger than the sum of its proper divisors (498044).

655612 is a wasteful number, since it uses less digits than its factorization.

655612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 655612 is about 809.6987093975. The cubic root of 655612 is about 86.8724956578.

The spelling of 655612 in words is "six hundred fifty-five thousand, six hundred twelve".