6557101 has 2 divisors, whose sum is σ = 6557102. Its totient is φ = 6557100.

The previous prime is 6557099. The next prime is 6557123. The reversal of 6557101 is 1017556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 181476 = 2525^2 + 426^2 .

It is a cyclic number.

It is not a de Polignac number, because 6557101 - 2¹ = 6557099 is a prime.

It is a super-3 number, since 3×6557101³ (a number of 21 digits) contains 333 as substring.

Together with 6557099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6557191) 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, 3278550 + 3278551.

It is an arithmetic number, because the mean of its divisors is an integer number (3278551).

Almost surely, 2^6557101 is an apocalyptic number.

It is an amenable number.

6557101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557101 is an equidigital number, since it uses as much as digits as its factorization.

6557101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 6557101 is about 2560.6836977651. The cubic root of 6557101 is about 187.1704528359.

The spelling of 6557101 in words is "six million, five hundred fifty-seven thousand, one hundred one".