6655633 has 2 divisors, whose sum is σ = 6655634. Its totient is φ = 6655632.

The previous prime is 6655631. The next prime is 6655637. The reversal of 6655633 is 3365566.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6594624 + 61009 = 2568^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 6655633 - 2¹ = 6655631 is a prime.

Together with 6655631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6655631) 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, 3327816 + 3327817.

It is an arithmetic number, because the mean of its divisors is an integer number (3327817).

Almost surely, 2^6655633 is an apocalyptic number.

It is an amenable number.

6655633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6655633 is an equidigital number, since it uses as much as digits as its factorization.

6655633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 34.

The square root of 6655633 is about 2579.8513523070. The cubic root of 6655633 is about 188.1033176631.

It can be divided in two parts, 665563 and 3, that added together give a palindrome (665566).

The spelling of 6655633 in words is "six million, six hundred fifty-five thousand, six hundred thirty-three".