6561412 has 24 divisors (see below), whose sum is σ = 13491072. Its totient is φ = 2752800.

The previous prime is 6561383. The next prime is 6561427. The reversal of 6561412 is 2141656.

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 in 7 ways as a sum of consecutive naturals, for example, 5164 + ... + 6307.

It is an arithmetic number, because the mean of its divisors is an integer number (562128).

Almost surely, 2^6561412 is an apocalyptic number.

It is an amenable number.

6561412 is an abundant number, since it is smaller than the sum of its proper divisors (6929660).

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

6561412 is a wasteful number, since it uses less digits than its factorization.

6561412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499 (or 11497 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 6561412 is about 2561.5253268317. The cubic root of 6561412 is about 187.2114625776.

The spelling of 6561412 in words is "six million, five hundred sixty-one thousand, four hundred twelve".