255236573 has 2 divisors, whose sum is σ = 255236574. Its totient is φ = 255236572.

The previous prime is 255236561. The next prime is 255236651. The reversal of 255236573 is 375632552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197065444 + 58171129 = 14038^2 + 7627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255236573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255236533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127618286 + 127618287.

It is an arithmetic number, because the mean of its divisors is an integer number (127618287).

Almost surely, 2^255236573 is an apocalyptic number.

It is an amenable number.

255236573 is a deficient number, since it is larger than the sum of its proper divisors (1).

255236573 is an equidigital number, since it uses as much as digits as its factorization.

255236573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 38.

The square root of 255236573 is about 15976.1250934011. The cubic root of 255236573 is about 634.3286127292.

The spelling of 255236573 in words is "two hundred fifty-five million, two hundred thirty-six thousand, five hundred seventy-three".