655575 has 12 divisors (see below), whose sum is σ = 1084008. Its totient is φ = 349600.

The previous prime is 655561. The next prime is 655579. The reversal of 655575 is 575556.

It is not a de Polignac number, because 655575 - 2⁴ = 655559 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4296 + ... + 4445.

It is an arithmetic number, because the mean of its divisors is an integer number (90334).

2⁶⁵⁵⁵⁷⁵ is an apocalyptic number.

655575 is a deficient number, since it is larger than the sum of its proper divisors (428433).

655575 is a wasteful number, since it uses less digits than its factorization.

655575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754 (or 8749 counting only the distinct ones).

The product of its digits is 26250, while the sum is 33.

The square root of 655575 is about 809.6758610703. The cubic root of 655575 is about 86.8708613870.

The spelling of 655575 in words is "six hundred fifty-five thousand, five hundred seventy-five".