255055513 has 2 divisors, whose sum is σ = 255055514. Its totient is φ = 255055512.

The previous prime is 255055469. The next prime is 255055517. The reversal of 255055513 is 315550552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254817369 + 238144 = 15963^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 255055513 - 2²¹ = 252958361 is a prime.

It is not a weakly prime, because it can be changed into another prime (255055517) 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, 127527756 + 127527757.

It is an arithmetic number, because the mean of its divisors is an integer number (127527757).

Almost surely, 2^255055513 is an apocalyptic number.

It is an amenable number.

255055513 is a deficient number, since it is larger than the sum of its proper divisors (1).

255055513 is an equidigital number, since it uses as much as digits as its factorization.

255055513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 255055513 is about 15970.4575075356. The cubic root of 255055513 is about 634.1785836721.

The spelling of 255055513 in words is "two hundred fifty-five million, fifty-five thousand, five hundred thirteen".