2565996 has 12 divisors (see below), whose sum is σ = 5987352. Its totient is φ = 855328.

The previous prime is 2565989. The next prime is 2566001. The reversal of 2565996 is 6995652.

It is a tau number, because it is divible by the number of its divisors (12).

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, 106905 + ... + 106928.

It is an arithmetic number, because the mean of its divisors is an integer number (498946).

2^2565996 is an apocalyptic number.

It is an amenable number.

2565996 is an abundant number, since it is smaller than the sum of its proper divisors (3421356).

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

2565996 is a wasteful number, since it uses less digits than its factorization.

2565996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213840 (or 213838 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 2565996 is about 1601.8726541146. The cubic root of 2565996 is about 136.9047947065.

The spelling of 2565996 in words is "two million, five hundred sixty-five thousand, nine hundred ninety-six".