255236651 has 2 divisors, whose sum is σ = 255236652. Its totient is φ = 255236650.

The previous prime is 255236573. The next prime is 255236669. The reversal of 255236651 is 156632552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255236651 - 2¹⁰ = 255235627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255236951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127618325 + 127618326.

It is an arithmetic number, because the mean of its divisors is an integer number (127618326).

Almost surely, 2^255236651 is an apocalyptic number.

255236651 is a deficient number, since it is larger than the sum of its proper divisors (1).

255236651 is an equidigital number, since it uses as much as digits as its factorization.

255236651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 35.

The square root of 255236651 is about 15976.1275345435. The cubic root of 255236651 is about 634.3286773459.

The spelling of 255236651 in words is "two hundred fifty-five million, two hundred thirty-six thousand, six hundred fifty-one".