2566225 has 12 divisors (see below), whose sum is σ = 3321216. Its totient is φ = 1963280.

The previous prime is 2566219. The next prime is 2566229. The reversal of 2566225 is 5226652.

It is not a de Polignac number, because 2566225 - 2⁷ = 2566097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2566193 and 2566202.

It is not an unprimeable number, because it can be changed into a prime (2566229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (276768).

2^2566225 is an apocalyptic number.

2566225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2566225 is a deficient number, since it is larger than the sum of its proper divisors (754991).

2566225 is a wasteful number, since it uses less digits than its factorization.

2566225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496 (or 4491 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 2566225 is about 1601.9441313604. The cubic root of 2566225 is about 136.9088672337.

The spelling of 2566225 in words is "two million, five hundred sixty-six thousand, two hundred twenty-five".