5491605 has 16 divisors (see below), whose sum is σ = 10041984. Its totient is φ = 2510400.

The previous prime is 5491597. The next prime is 5491609. The reversal of 5491605 is 5061945.

It is not a de Polignac number, because 5491605 - 2³ = 5491597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5491609) 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 in 15 ways as a sum of consecutive naturals, for example, 26046 + ... + 26255.

It is an arithmetic number, because the mean of its divisors is an integer number (627624).

Almost surely, 2^5491605 is an apocalyptic number.

It is an amenable number.

5491605 is a deficient number, since it is larger than the sum of its proper divisors (4550379).

5491605 is a wasteful number, since it uses less digits than its factorization.

5491605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52316.

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

The square root of 5491605 is about 2343.4173763971. The cubic root of 5491605 is about 176.4275611113.

The spelling of 5491605 in words is "five million, four hundred ninety-one thousand, six hundred five".