655212 has 12 divisors (see below), whose sum is σ = 1528856. Its totient is φ = 218400.

The previous prime is 655211. The next prime is 655219. The reversal of 655212 is 212556.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27289 + ... + 27312.

2⁶⁵⁵²¹² is an apocalyptic number.

It is an amenable number.

655212 is an abundant number, since it is smaller than the sum of its proper divisors (873644).

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

655212 is a wasteful number, since it uses less digits than its factorization.

655212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54608 (or 54606 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 655212 is about 809.4516662531. The cubic root of 655212 is about 86.8548246026.

Adding to 655212 its reverse (212556), we get a palindrome (867768).

The spelling of 655212 in words is "six hundred fifty-five thousand, two hundred twelve".