2566825 has 6 divisors (see below), whose sum is σ = 3182894. Its totient is φ = 2053440.

The previous prime is 2566807. The next prime is 2566829. The reversal of 2566825 is 5286652.

2566825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 414736 + 2152089 = 644^2 + 1467^2 .

It is not a de Polignac number, because 2566825 - 2¹⁵ = 2534057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51312 + ... + 51361.

2^2566825 is an apocalyptic number.

2566825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2566825 is a deficient number, since it is larger than the sum of its proper divisors (616069).

2566825 is a wasteful number, since it uses less digits than its factorization.

2566825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102683 (or 102678 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2566825 is about 1602.1313928639. The cubic root of 2566825 is about 136.9195364617.

The spelling of 2566825 in words is "two million, five hundred sixty-six thousand, eight hundred twenty-five".