6655801 has 2 divisors, whose sum is σ = 6655802. Its totient is φ = 6655800.

The previous prime is 6655769. The next prime is 6655837. The reversal of 6655801 is 1085566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4405801 + 2250000 = 2099^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655801 - 2⁵ = 6655769 is a prime.

It is not a weakly prime, because it can be changed into another prime (6655001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327900 + 3327901.

It is an arithmetic number, because the mean of its divisors is an integer number (3327901).

Almost surely, 2^6655801 is an apocalyptic number.

It is an amenable number.

6655801 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655801 is an equidigital number, since it uses as much as digits as its factorization.

6655801 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 6655801 is about 2579.8839121170. The cubic root of 6655801 is about 188.1049003371.

The spelling of 6655801 in words is "six million, six hundred fifty-five thousand, eight hundred one".