6563480 has 64 divisors (see below), whose sum is σ = 18420480. Its totient is φ = 2044800.

The previous prime is 6563461. The next prime is 6563507. The reversal of 6563480 is 843656.

6563480 = 246² + 247² + ... + 325².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015 + ... + 4145.

It is an arithmetic number, because the mean of its divisors is an integer number (287820).

Almost surely, 2^6563480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6563480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9210240).

6563480 is an abundant number, since it is smaller than the sum of its proper divisors (11857000).

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

6563480 is a wasteful number, since it uses less digits than its factorization.

6563480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6563480 is about 2561.9289607637. The cubic root of 6563480 is about 187.2311287022.

The spelling of 6563480 in words is "six million, five hundred sixty-three thousand, four hundred eighty".