255115369 has 2 divisors, whose sum is σ = 255115370. Its totient is φ = 255115368.

The previous prime is 255115339. The next prime is 255115387. The reversal of 255115369 is 963511552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192515625 + 62599744 = 13875^2 + 7912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255115369 is a prime.

It is a super-2 number, since 2×255115369² = 130167703000012322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255115339) 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, 127557684 + 127557685.

It is an arithmetic number, because the mean of its divisors is an integer number (127557685).

Almost surely, 2^255115369 is an apocalyptic number.

It is an amenable number.

255115369 is a deficient number, since it is larger than the sum of its proper divisors (1).

255115369 is an equidigital number, since it uses as much as digits as its factorization.

255115369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 37.

The square root of 255115369 is about 15972.3313576948. The cubic root of 255115369 is about 634.2281891140.

The spelling of 255115369 in words is "two hundred fifty-five million, one hundred fifteen thousand, three hundred sixty-nine".