12561562 has 16 divisors (see below), whose sum is σ = 20597472. Its totient is φ = 5710320.

The previous prime is 12561551. The next prime is 12561599. The reversal of 12561562 is 26516521.

It is a self number, because there is not a number n which added to its sum of digits gives 12561562.

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, 1864 + ... + 5347.

It is an arithmetic number, because the mean of its divisors is an integer number (1287342).

Almost surely, 2^12561562 is an apocalyptic number.

12561562 is a deficient number, since it is larger than the sum of its proper divisors (8035910).

12561562 is a wasteful number, since it uses less digits than its factorization.

12561562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293.

The product of its digits is 3600, while the sum is 28.

The square root of 12561562 is about 3544.2293943818. The cubic root of 12561562 is about 232.4598119153.

The spelling of 12561562 in words is "twelve million, five hundred sixty-one thousand, five hundred sixty-two".