6550655 has 16 divisors (see below), whose sum is σ = 8087904. Its totient is φ = 5091840.

The previous prime is 6550651. The next prime is 6550669. The reversal of 6550655 is 5560556.

It is not a de Polignac number, because 6550655 - 2² = 6550651 is a prime.

It is a super-2 number, since 2×6550655² = 85822161858050, 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 (6550651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47747 + ... + 47883.

It is an arithmetic number, because the mean of its divisors is an integer number (505494).

Almost surely, 2^6550655 is an apocalyptic number.

6550655 is a deficient number, since it is larger than the sum of its proper divisors (1537249).

6550655 is a wasteful number, since it uses less digits than its factorization.

6550655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 6550655 is about 2559.4247400539. The cubic root of 6550655 is about 187.1090996908.

Subtracting from 6550655 its reverse (5560556), we obtain a palindrome (990099).

The spelling of 6550655 in words is "six million, five hundred fifty thousand, six hundred fifty-five".