255418 has 4 divisors (see below), whose sum is σ = 383130. Its totient is φ = 127708.

The previous prime is 255413. The next prime is 255419. The reversal of 255418 is 814552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 227529 + 27889 = 477^2 + 167^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255392 and 255401.

It is not an unprimeable number, because it can be changed into a prime (255413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63853 + ... + 63856.

2²⁵⁵⁴¹⁸ is an apocalyptic number.

255418 is a deficient number, since it is larger than the sum of its proper divisors (127712).

255418 is a wasteful number, since it uses less digits than its factorization.

255418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127711.

The product of its digits is 1600, while the sum is 25.

The square root of 255418 is about 505.3889591196. The cubic root of 255418 is about 63.4478874737.

The spelling of 255418 in words is "two hundred fifty-five thousand, four hundred eighteen".