255305111 has 2 divisors, whose sum is σ = 255305112. Its totient is φ = 255305110.

The previous prime is 255305087. The next prime is 255305123. The reversal of 255305111 is 111503552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255305111 - 2⁶ = 255305047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255305131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127652555 + 127652556.

It is an arithmetic number, because the mean of its divisors is an integer number (127652556).

Almost surely, 2^255305111 is an apocalyptic number.

255305111 is a deficient number, since it is larger than the sum of its proper divisors (1).

255305111 is an equidigital number, since it uses as much as digits as its factorization.

255305111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 255305111 is about 15978.2699626712. The cubic root of 255305111 is about 634.3853858411.

Adding to 255305111 its reverse (111503552), we get a palindrome (366808663).

The spelling of 255305111 in words is "two hundred fifty-five million, three hundred five thousand, one hundred eleven".