255436 has 12 divisors (see below), whose sum is σ = 470680. Its totient is φ = 120960.

The previous prime is 255419. The next prime is 255443. The reversal of 255436 is 634552.

255436 = T₄₁ + T₄₂ + ... + T₁₁₆.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 255436.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1605 + ... + 1756.

2²⁵⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

255436 is a deficient number, since it is larger than the sum of its proper divisors (215244).

255436 is a wasteful number, since it uses less digits than its factorization.

255436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384 (or 3382 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 255436 is about 505.4067668720. The cubic root of 255436 is about 63.4493778870.

Adding to 255436 its reverse (634552), we get a palindrome (889988).

The spelling of 255436 in words is "two hundred fifty-five thousand, four hundred thirty-six".