6561024 has 36 divisors (see below), whose sum is σ = 17463936. Its totient is φ = 2186752.

The previous prime is 6561019. The next prime is 6561073. The reversal of 6561024 is 4201656.

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 = 6560985 and 6561003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504 + ... + 5039.

Almost surely, 2^6561024 is an apocalyptic number.

6561024 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6561024 is an abundant number, since it is smaller than the sum of its proper divisors (10902912).

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

6561024 is an equidigital number, since it uses as much as digits as its factorization.

6561024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562 (or 8548 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6561024 is about 2561.4495895879. The cubic root of 6561024 is about 187.2077723415.

The spelling of 6561024 in words is "six million, five hundred sixty-one thousand, twenty-four".