255437 has 12 divisors (see below), whose sum is σ = 320796. Its totient is φ = 201600.

The previous prime is 255419. The next prime is 255443. The reversal of 255437 is 734552.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 90601 = 406^2 + 301^2 .

It is not a de Polignac number, because 255437 - 2⁸ = 255181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437 + ... + 837.

It is an arithmetic number, because the mean of its divisors is an integer number (26733).

2²⁵⁵⁴³⁷ is an apocalyptic number.

It is an amenable number.

255437 is a deficient number, since it is larger than the sum of its proper divisors (65359).

255437 is a wasteful number, since it uses less digits than its factorization.

255437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 421 counting only the distinct ones).

The product of its digits is 4200, while the sum is 26.

The square root of 255437 is about 505.4077561732. The cubic root of 255437 is about 63.4494606857.

Adding to 255437 its reverse (734552), we get a palindrome (989989).

The spelling of 255437 in words is "two hundred fifty-five thousand, four hundred thirty-seven".