6553165 has 4 divisors (see below), whose sum is σ = 7863804. Its totient is φ = 5242528.

The previous prime is 6553147. The next prime is 6553187. The reversal of 6553165 is 5613556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 3948169 = 1614^2 + 1987^2 .

It is a cyclic number.

It is not a de Polignac number, because 6553165 - 2⁷ = 6553037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655312 + ... + 655321.

It is an arithmetic number, because the mean of its divisors is an integer number (1965951).

Almost surely, 2^6553165 is an apocalyptic number.

It is an amenable number.

6553165 is a deficient number, since it is larger than the sum of its proper divisors (1310639).

6553165 is a wasteful number, since it uses less digits than its factorization.

6553165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310638.

The product of its digits is 13500, while the sum is 31.

The square root of 6553165 is about 2559.9150376526. The cubic root of 6553165 is about 187.1329946992.

The spelling of 6553165 in words is "six million, five hundred fifty-three thousand, one hundred sixty-five".