6532661 has 4 divisors (see below), whose sum is σ = 6743424. Its totient is φ = 6321900.

The previous prime is 6532651. The next prime is 6532693. The reversal of 6532661 is 1662356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6532661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6532601) 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 3 ways as a sum of consecutive naturals, for example, 105335 + ... + 105396.

It is an arithmetic number, because the mean of its divisors is an integer number (1685856).

Almost surely, 2^6532661 is an apocalyptic number.

It is an amenable number.

6532661 is a deficient number, since it is larger than the sum of its proper divisors (210763).

6532661 is a wasteful number, since it uses less digits than its factorization.

6532661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210762.

The product of its digits is 6480, while the sum is 29.

The square root of 6532661 is about 2555.9070796881. The cubic root of 6532661 is about 186.9376191978.

The spelling of 6532661 in words is "six million, five hundred thirty-two thousand, six hundred sixty-one".