6561472 has 14 divisors (see below), whose sum is σ = 13020548. Its totient is φ = 3280704.

The previous prime is 6561461. The next prime is 6561481. The reversal of 6561472 is 2741656.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51198 + ... + 51325.

Almost surely, 2^6561472 is an apocalyptic number.

It is an amenable number.

6561472 is a deficient number, since it is larger than the sum of its proper divisors (6459076).

6561472 is a wasteful number, since it uses less digits than its factorization.

6561472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102535 (or 102525 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 6561472 is about 2561.5370385766. The cubic root of 6561472 is about 187.2120332197.

The spelling of 6561472 in words is "six million, five hundred sixty-one thousand, four hundred seventy-two".