2565632 has 20 divisors (see below), whose sum is σ = 5127276. Its totient is φ = 1282560.

The previous prime is 2565611. The next prime is 2565643. The reversal of 2565632 is 2365652.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2565595 and 2565604.

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 as a sum of consecutive naturals, namely, 1994 + ... + 3017.

2^2565632 is an apocalyptic number.

It is an amenable number.

2565632 is a deficient number, since it is larger than the sum of its proper divisors (2561644).

2565632 is an frugal number, since it uses more digits than its factorization.

2565632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029 (or 5013 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 2565632 is about 1601.7590330633. The cubic root of 2565632 is about 136.8983208458.

The spelling of 2565632 in words is "two million, five hundred sixty-five thousand, six hundred thirty-two".