255589601 has 2 divisors, whose sum is σ = 255589602. Its totient is φ = 255589600.

The previous prime is 255589591. The next prime is 255589603. The reversal of 255589601 is 106985552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129049600 + 126540001 = 11360^2 + 11249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255589601 is a prime.

It is a Sophie Germain prime.

Together with 255589603, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (255589603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127794800 + 127794801.

It is an arithmetic number, because the mean of its divisors is an integer number (127794801).

Almost surely, 2^255589601 is an apocalyptic number.

It is an amenable number.

255589601 is a deficient number, since it is larger than the sum of its proper divisors (1).

255589601 is an equidigital number, since it uses as much as digits as its factorization.

255589601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 255589601 is about 15987.1698871314. The cubic root of 255589601 is about 634.6209331613.

The spelling of 255589601 in words is "two hundred fifty-five million, five hundred eighty-nine thousand, six hundred one".