6550140 has 24 divisors (see below), whose sum is σ = 18340560. Its totient is φ = 1746688.

The previous prime is 6550129. The next prime is 6550157. The reversal of 6550140 is 410556.

6550140 = 385² + 386² + ... + 424².

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54525 + ... + 54644.

It is an arithmetic number, because the mean of its divisors is an integer number (764190).

Almost surely, 2^6550140 is an apocalyptic number.

6550140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6550140 is an abundant number, since it is smaller than the sum of its proper divisors (11790420).

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

6550140 is a wasteful number, since it uses less digits than its factorization.

6550140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109181 (or 109179 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 6550140 is about 2559.3241295311. The cubic root of 6550140 is about 187.1041961755.

Adding to 6550140 its reverse (410556), we get a palindrome (6960696).

It can be divided in two parts, 65 and 50140, that added together give a palindrome (50205).

The spelling of 6550140 in words is "six million, five hundred fifty thousand, one hundred forty".