655572 has 12 divisors (see below), whose sum is σ = 1529696. Its totient is φ = 218520.

The previous prime is 655561. The next prime is 655579. The reversal of 655572 is 275556.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655579) by changing a digit.

655572 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, 27304 + ... + 27327.

2⁶⁵⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

655572 is an abundant number, since it is smaller than the sum of its proper divisors (874124).

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

655572 is a wasteful number, since it uses less digits than its factorization.

655572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54638 (or 54636 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 655572 is about 809.6740084750. The cubic root of 655572 is about 86.8707288758.

The spelling of 655572 in words is "six hundred fifty-five thousand, five hundred seventy-two".