2561576 has 16 divisors (see below), whose sum is σ = 4853940. Its totient is φ = 1267200.

The previous prime is 2561551. The next prime is 2561593. The reversal of 2561576 is 6751652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2477476 + 84100 = 1574^2 + 290^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875 + ... + 2426.

2^2561576 is an apocalyptic number.

It is an amenable number.

2561576 is a deficient number, since it is larger than the sum of its proper divisors (2292364).

2561576 is a wasteful number, since it uses less digits than its factorization.

2561576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3400 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 2561576 is about 1600.4924242245. The cubic root of 2561576 is about 136.8261420806.

The spelling of 2561576 in words is "two million, five hundred sixty-one thousand, five hundred seventy-six".