255808073 has 2 divisors, whose sum is σ = 255808074. Its totient is φ = 255808072.

The previous prime is 255808013. The next prime is 255808079. The reversal of 255808073 is 370808552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255744064 + 64009 = 15992^2 + 253^2 .

It is a cyclic number.

It is not a de Polignac number, because 255808073 - 2⁶ = 255808009 is a prime.

It is not a weakly prime, because it can be changed into another prime (255808079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127904036 + 127904037.

It is an arithmetic number, because the mean of its divisors is an integer number (127904037).

Almost surely, 2^255808073 is an apocalyptic number.

It is an amenable number.

255808073 is a deficient number, since it is larger than the sum of its proper divisors (1).

255808073 is an equidigital number, since it uses as much as digits as its factorization.

255808073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 255808073 is about 15994.0011566837. The cubic root of 255808073 is about 634.8017013650.

The spelling of 255808073 in words is "two hundred fifty-five million, eight hundred eight thousand, seventy-three".