255505052969 has 2 divisors, whose sum is σ = 255505052970. Its totient is φ = 255505052968.

The previous prime is 255505052963. The next prime is 255505052989. The reversal of 255505052969 is 969250505552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255062371369 + 442681600 = 505037^2 + 21040^2 .

It is a cyclic number.

It is not a de Polignac number, because 255505052969 - 2⁸ = 255505052713 is a prime.

It is a super-2 number, since 2×255505052969² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255505052969.

It is not a weakly prime, because it can be changed into another prime (255505052963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127752526484 + 127752526485.

It is an arithmetic number, because the mean of its divisors is an integer number (127752526485).

Almost surely, 2^255505052969 is an apocalyptic number.

It is an amenable number.

255505052969 is a deficient number, since it is larger than the sum of its proper divisors (1).

255505052969 is an equidigital number, since it uses as much as digits as its factorization.

255505052969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075000, while the sum is 53.

The spelling of 255505052969 in words is "two hundred fifty-five billion, five hundred five million, fifty-two thousand, nine hundred sixty-nine".