2566395 has 48 divisors (see below), whose sum is σ = 4953312. Its totient is φ = 1221120.

The previous prime is 2566367. The next prime is 2566411. The reversal of 2566395 is 5936652.

2566395 is a `hidden beast` number, since 2 + 566 + 3 + 95 = 666.

It is not a de Polignac number, because 2566395 - 2⁸ = 2566139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23932 + ... + 24038.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2^2566395 is an apocalyptic number.

2566395 is a deficient number, since it is larger than the sum of its proper divisors (2386917).

2566395 is a wasteful number, since it uses less digits than its factorization.

2566395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 169 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 2566395 is about 1601.9971910088. The cubic root of 2566395 is about 136.9118903505.

The spelling of 2566395 in words is "two million, five hundred sixty-six thousand, three hundred ninety-five".