255511219 has 2 divisors, whose sum is σ = 255511220. Its totient is φ = 255511218.

The previous prime is 255511211. The next prime is 255511253. The reversal of 255511219 is 912115552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255511219 - 2³ = 255511211 is a prime.

It is a super-2 number, since 2×255511219² = 130571966069731922, which contains 22 as substring.

It is equal to p_13964206 and since 255511219 and 13964206 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255511211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127755609 + 127755610.

It is an arithmetic number, because the mean of its divisors is an integer number (127755610).

Almost surely, 2^255511219 is an apocalyptic number.

255511219 is a deficient number, since it is larger than the sum of its proper divisors (1).

255511219 is an equidigital number, since it uses as much as digits as its factorization.

255511219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 31.

The square root of 255511219 is about 15984.7182959225. The cubic root of 255511219 is about 634.5560531824.

The spelling of 255511219 in words is "two hundred fifty-five million, five hundred eleven thousand, two hundred nineteen".