655975 has 12 divisors (see below), whose sum is σ = 856840. Its totient is φ = 496800.

The previous prime is 655961. The next prime is 655987. The reversal of 655975 is 579556.

It is not a de Polignac number, because 655975 - 2⁵ = 655943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216 + ... + 1165.

2⁶⁵⁵⁹⁷⁵ is an apocalyptic number.

655975 is a deficient number, since it is larger than the sum of its proper divisors (200865).

655975 is a wasteful number, since it uses less digits than its factorization.

655975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1405 counting only the distinct ones).

The product of its digits is 47250, while the sum is 37.

The square root of 655975 is about 809.9228358307. The cubic root of 655975 is about 86.8885259205. Note that the first 3 decimals are identical.

The spelling of 655975 in words is "six hundred fifty-five thousand, nine hundred seventy-five".