6553040 has 40 divisors (see below), whose sum is σ = 16410408. Its totient is φ = 2419200.

The previous prime is 6553039. The next prime is 6553049. The reversal of 6553040 is 403556.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 6330256 = 472^2 + 2516^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 6552997 and 6553015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6553049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 4190.

Almost surely, 2^6553040 is an apocalyptic number.

It is an amenable number.

6553040 is an abundant number, since it is smaller than the sum of its proper divisors (9857368).

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

6553040 is a wasteful number, since it uses less digits than its factorization.

6553040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327 (or 6321 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 6553040 is about 2559.8906226634. The cubic root of 6553040 is about 187.1318048531.

Adding to 6553040 its reverse (403556), we get a palindrome (6956596).

The spelling of 6553040 in words is "six million, five hundred fifty-three thousand, forty".