255306319 has 2 divisors, whose sum is σ = 255306320. Its totient is φ = 255306318.

The previous prime is 255306277. The next prime is 255306329. The reversal of 255306319 is 913603552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255306319 - 2⁹ = 255305807 is a prime.

It is a super-2 number, since 2×255306319² = 130362633042659522, which contains 22 as substring.

It is equal to p_13953571 and since 255306319 and 13953571 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255306329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127653159 + 127653160.

It is an arithmetic number, because the mean of its divisors is an integer number (127653160).

Almost surely, 2^255306319 is an apocalyptic number.

255306319 is a deficient number, since it is larger than the sum of its proper divisors (1).

255306319 is an equidigital number, since it uses as much as digits as its factorization.

255306319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 255306319 is about 15978.3077639655. The cubic root of 255306319 is about 634.3863863908.

The spelling of 255306319 in words is "two hundred fifty-five million, three hundred six thousand, three hundred nineteen".