6555869 has 4 divisors (see below), whose sum is σ = 6582240. Its totient is φ = 6529500.

The previous prime is 6555839. The next prime is 6555907. The reversal of 6555869 is 9685556.

6555869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6555869 - 2¹⁶ = 6490333 is a prime.

It is a super-2 number, since 2×6555869² = 85958836690322, which contains 22 as substring.

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 (6555839) 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, 12809 + ... + 13310.

It is an arithmetic number, because the mean of its divisors is an integer number (1645560).

Almost surely, 2^6555869 is an apocalyptic number.

It is an amenable number.

6555869 is a deficient number, since it is larger than the sum of its proper divisors (26371).

6555869 is a wasteful number, since it uses less digits than its factorization.

6555869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26370.

The product of its digits is 324000, while the sum is 44.

The square root of 6555869 is about 2560.4431257109. The cubic root of 6555869 is about 187.1587297466.

The spelling of 6555869 in words is "six million, five hundred fifty-five thousand, eight hundred sixty-nine".