6491055 has 8 divisors (see below), whose sum is σ = 10385712. Its totient is φ = 3461888.

The previous prime is 6491047. The next prime is 6491081. The reversal of 6491055 is 5501946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6491055 - 2³ = 6491047 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 216354 + ... + 216383.

It is an arithmetic number, because the mean of its divisors is an integer number (1298214).

Almost surely, 2^6491055 is an apocalyptic number.

6491055 is a deficient number, since it is larger than the sum of its proper divisors (3894657).

6491055 is a wasteful number, since it uses less digits than its factorization.

6491055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432745.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 6491055 is about 2547.7548940194. The cubic root of 6491055 is about 186.5399100476.

It can be divided in two parts, 64 and 91055, that added together give a palindrome (91119).

The spelling of 6491055 in words is "six million, four hundred ninety-one thousand, fifty-five".