2565236 has 12 divisors (see below), whose sum is σ = 4684512. Its totient is φ = 1226808.

The previous prime is 2565221. The next prime is 2565239. The reversal of 2565236 is 6325652.

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 = 2565199 and 2565208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13850 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (390376).

2^2565236 is an apocalyptic number.

It is an amenable number.

2565236 is a deficient number, since it is larger than the sum of its proper divisors (2119276).

2565236 is a wasteful number, since it uses less digits than its factorization.

2565236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27910 (or 27908 counting only the distinct ones).

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

The square root of 2565236 is about 1601.6354141939. The cubic root of 2565236 is about 136.8912771591.

The spelling of 2565236 in words is "two million, five hundred sixty-five thousand, two hundred thirty-six".