255861301 has 2 divisors, whose sum is σ = 255861302. Its totient is φ = 255861300.

The previous prime is 255861283. The next prime is 255861311. The reversal of 255861301 is 103168552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224220676 + 31640625 = 14974^2 + 5625^2 .

It is a cyclic number.

It is not a de Polignac number, because 255861301 - 2¹⁵ = 255828533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255861311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127930650 + 127930651.

It is an arithmetic number, because the mean of its divisors is an integer number (127930651).

Almost surely, 2^255861301 is an apocalyptic number.

It is an amenable number.

255861301 is a deficient number, since it is larger than the sum of its proper divisors (1).

255861301 is an equidigital number, since it uses as much as digits as its factorization.

255861301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 255861301 is about 15995.6650690117. The cubic root of 255861301 is about 634.8457277077.

The spelling of 255861301 in words is "two hundred fifty-five million, eight hundred sixty-one thousand, three hundred one".