255716 has 6 divisors (see below), whose sum is σ = 447510. Its totient is φ = 127856.

The previous prime is 255713. The next prime is 255733. The reversal of 255716 is 617552.

255716 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 87616 = 410^2 + 296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31961 + ... + 31968.

It is an arithmetic number, because the mean of its divisors is an integer number (74585).

2²⁵⁵⁷¹⁶ is an apocalyptic number.

It is an amenable number.

255716 is a deficient number, since it is larger than the sum of its proper divisors (191794).

255716 is a wasteful number, since it uses less digits than its factorization.

255716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63933 (or 63931 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 255716 is about 505.6836956043. The cubic root of 255716 is about 63.4725530833.

The spelling of 255716 in words is "two hundred fifty-five thousand, seven hundred sixteen".