6550224 has 20 divisors (see below), whose sum is σ = 16921536. Its totient is φ = 2183392.

The previous prime is 6550223. The next prime is 6550261. The reversal of 6550224 is 4220556.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6550194 and 6550203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550223) 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, 68184 + ... + 68279.

Almost surely, 2^6550224 is an apocalyptic number.

It is an amenable number.

6550224 is an abundant number, since it is smaller than the sum of its proper divisors (10371312).

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

6550224 is a wasteful number, since it uses less digits than its factorization.

6550224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136474 (or 136468 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 6550224 is about 2559.3405400611. The cubic root of 6550224 is about 187.1049959897.

The spelling of 6550224 in words is "six million, five hundred fifty thousand, two hundred twenty-four".