655475 has 12 divisors (see below), whose sum is σ = 822864. Its totient is φ = 517920.

The previous prime is 655471. The next prime is 655489. The reversal of 655475 is 574556.

It is a happy number.

It is not a de Polignac number, because 655475 - 2² = 655471 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3842 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (68572).

2⁶⁵⁵⁴⁷⁵ is an apocalyptic number.

655475 is a deficient number, since it is larger than the sum of its proper divisors (167389).

655475 is a wasteful number, since it uses less digits than its factorization.

655475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 329 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 655475 is about 809.6141056083. The cubic root of 655475 is about 86.8664441309.

The spelling of 655475 in words is "six hundred fifty-five thousand, four hundred seventy-five".