255547 has 4 divisors (see below), whose sum is σ = 256576. Its totient is φ = 254520.

The previous prime is 255523. The next prime is 255551. The reversal of 255547 is 745552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 255547 - 2⁷ = 255419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255517) 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, 118 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (64144).

2²⁵⁵⁵⁴⁷ is an apocalyptic number.

255547 is a deficient number, since it is larger than the sum of its proper divisors (1029).

255547 is an equidigital number, since it uses as much as digits as its factorization.

255547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its digits is 7000, while the sum is 28.

The square root of 255547 is about 505.5165674832. The cubic root of 255547 is about 63.4585672221.

The spelling of 255547 in words is "two hundred fifty-five thousand, five hundred forty-seven".