6550740 has 96 divisors (see below), whose sum is σ = 23304960. Its totient is φ = 1496448.

The previous prime is 6550679. The next prime is 6550741. The reversal of 6550740 is 470556.

6550740 is a `hidden beast` number, since 655 + 0 + 7 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550741) 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 31 ways as a sum of consecutive naturals, for example, 2914 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (242760).

Almost surely, 2^6550740 is an apocalyptic number.

6550740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6550740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11652480).

6550740 is an abundant number, since it is smaller than the sum of its proper divisors (16754220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6550740 is a wasteful number, since it uses less digits than its factorization.

6550740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 6550740 is about 2559.4413452939. The cubic root of 6550740 is about 187.1099089842.

It can be divided in two parts, 65 and 50740, that added together give a palindrome (50805).

The spelling of 6550740 in words is "six million, five hundred fifty thousand, seven hundred forty".