255505050257 has 2 divisors, whose sum is σ = 255505050258. Its totient is φ = 255505050256.

The previous prime is 255505050253. The next prime is 255505050319. The reversal of 255505050257 is 752050505552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236250435136 + 19254615121 = 486056^2 + 138761^2 .

It is a cyclic number.

It is not a de Polignac number, because 255505050257 - 2² = 255505050253 is a prime.

It is not a weakly prime, because it can be changed into another prime (255505050253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127752525128 + 127752525129.

It is an arithmetic number, because the mean of its divisors is an integer number (127752525129).

Almost surely, 2^255505050257 is an apocalyptic number.

It is an amenable number.

255505050257 is a deficient number, since it is larger than the sum of its proper divisors (1).

255505050257 is an equidigital number, since it uses as much as digits as its factorization.

255505050257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437500, while the sum is 41.

The spelling of 255505050257 in words is "two hundred fifty-five billion, five hundred five million, fifty thousand, two hundred fifty-seven".