255419 has 2 divisors, whose sum is σ = 255420. Its totient is φ = 255418.

The previous prime is 255413. The next prime is 255443. The reversal of 255419 is 914552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255419 - 2¹² = 251323 is a prime.

It is a super-2 number, since 2×255419² = 130477731122, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (255413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127709 + 127710.

It is an arithmetic number, because the mean of its divisors is an integer number (127710).

2²⁵⁵⁴¹⁹ is an apocalyptic number.

255419 is a deficient number, since it is larger than the sum of its proper divisors (1).

255419 is an equidigital number, since it uses as much as digits as its factorization.

255419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 255419 is about 505.3899484556. The cubic root of 255419 is about 63.4479702763.

The spelling of 255419 in words is "two hundred fifty-five thousand, four hundred nineteen".