255565120650629 has 2 divisors, whose sum is σ = 255565120650630. Its totient is φ = 255565120650628.

The previous prime is 255565120650557. The next prime is 255565120650703. The reversal of 255565120650629 is 926056021565552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248622791521729 + 6942329128900 = 15767777^2 + 2634830^2 .

It is a cyclic number.

It is not a de Polignac number, because 255565120650629 - 2¹² = 255565120646533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255565120350629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127782560325314 + 127782560325315.

It is an arithmetic number, because the mean of its divisors is an integer number (127782560325315).

Almost surely, 2^{255565120650629} is an apocalyptic number.

It is an amenable number.

255565120650629 is a deficient number, since it is larger than the sum of its proper divisors (1).

255565120650629 is an equidigital number, since it uses as much as digits as its factorization.

255565120650629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600000, while the sum is 59.

The spelling of 255565120650629 in words is "two hundred fifty-five trillion, five hundred sixty-five billion, one hundred twenty million, six hundred fifty thousand, six hundred twenty-nine".