6675561 has 16 divisors (see below), whose sum is σ = 9929920. Its totient is φ = 4432320.

The previous prime is 6675547. The next prime is 6675563. The reversal of 6675561 is 1655766.

It is a happy number.

It is not a de Polignac number, because 6675561 - 2⁷ = 6675433 is a prime.

It is a super-2 number, since 2×6675561² = 89126229329442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6675563) 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, 11406 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (620620).

Almost surely, 2^6675561 is an apocalyptic number.

It is an amenable number.

6675561 is a deficient number, since it is larger than the sum of its proper divisors (3254359).

6675561 is a wasteful number, since it uses less digits than its factorization.

With its successor (6675562) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1013).

6675561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1007 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 6675561 is about 2583.7107036199. The cubic root of 6675561 is about 188.2908674627.

The spelling of 6675561 in words is "six million, six hundred seventy-five thousand, five hundred sixty-one".