255747 has 8 divisors (see below), whose sum is σ = 343744. Its totient is φ = 169128.

The previous prime is 255743. The next prime is 255757. The reversal of 255747 is 747552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255747 - 2² = 255743 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (255743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (42968).

2²⁵⁵⁷⁴⁷ is an apocalyptic number.

255747 is a deficient number, since it is larger than the sum of its proper divisors (87997).

255747 is a wasteful number, since it uses less digits than its factorization.

255747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its digits is 9800, while the sum is 30.

The square root of 255747 is about 505.7143462470. The cubic root of 255747 is about 63.4751178683.

The spelling of 255747 in words is "two hundred fifty-five thousand, seven hundred forty-seven".