255569680529 has 2 divisors, whose sum is σ = 255569680530. Its totient is φ = 255569680528.

The previous prime is 255569680501. The next prime is 255569680537. The reversal of 255569680529 is 925086965552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229682479504 + 25887201025 = 479252^2 + 160895^2 .

It is a cyclic number.

It is not a de Polignac number, because 255569680529 - 2⁸ = 255569680273 is a prime.

It is not a weakly prime, because it can be changed into another prime (255569980529) 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, 127784840264 + 127784840265.

It is an arithmetic number, because the mean of its divisors is an integer number (127784840265).

Almost surely, 2^255569680529 is an apocalyptic number.

It is an amenable number.

255569680529 is a deficient number, since it is larger than the sum of its proper divisors (1).

255569680529 is an equidigital number, since it uses as much as digits as its factorization.

255569680529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320000, while the sum is 62.

The spelling of 255569680529 in words is "two hundred fifty-five billion, five hundred sixty-nine million, six hundred eighty thousand, five hundred twenty-nine".