255065261173 has 2 divisors, whose sum is σ = 255065261174. Its totient is φ = 255065261172.

The previous prime is 255065261021. The next prime is 255065261201. The reversal of 255065261173 is 371162560552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247189941124 + 7875320049 = 497182^2 + 88743^2 .

It is a cyclic number.

It is not a de Polignac number, because 255065261173 - 2²⁹ = 254528390261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255065268173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127532630586 + 127532630587.

It is an arithmetic number, because the mean of its divisors is an integer number (127532630587).

Almost surely, 2^255065261173 is an apocalyptic number.

It is an amenable number.

255065261173 is a deficient number, since it is larger than the sum of its proper divisors (1).

255065261173 is an equidigital number, since it uses as much as digits as its factorization.

255065261173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 255065261173 in words is "two hundred fifty-five billion, sixty-five million, two hundred sixty-one thousand, one hundred seventy-three".