6552181 has 4 divisors (see below), whose sum is σ = 6635200. Its totient is φ = 6469164.

The previous prime is 6552179. The next prime is 6552187. The reversal of 6552181 is 1812556.

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 not a de Polignac number, because 6552181 - 2¹ = 6552179 is a prime.

It is a super-2 number, since 2×6552181² = 85862151713522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6552187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41391 + ... + 41548.

It is an arithmetic number, because the mean of its divisors is an integer number (1658800).

Almost surely, 2^6552181 is an apocalyptic number.

It is an amenable number.

6552181 is a deficient number, since it is larger than the sum of its proper divisors (83019).

6552181 is an equidigital number, since it uses as much as digits as its factorization.

6552181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83018.

The product of its digits is 2400, while the sum is 28.

The square root of 6552181 is about 2559.7228365587. The cubic root of 6552181 is about 187.1236278216.

The spelling of 6552181 in words is "six million, five hundred fifty-two thousand, one hundred eighty-one".