2556225 has 48 divisors (see below), whose sum is σ = 5376640. Its totient is φ = 1166400.

The previous prime is 2556217. The next prime is 2556233. The reversal of 2556225 is 5226552.

It is an interprime number because it is at equal distance from previous prime (2556217) and next prime (2556233).

It is not a de Polignac number, because 2556225 - 2³ = 2556217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4455 + ... + 4995.

2^2556225 is an apocalyptic number.

2556225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2556225 is an abundant number, since it is smaller than the sum of its proper divisors (2820415).

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

2556225 is a wasteful number, since it uses less digits than its factorization.

2556225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 556 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 2556225 is about 1598.8198772845. The cubic root of 2556225 is about 136.7308014139.

The spelling of 2556225 in words is "two million, five hundred fifty-six thousand, two hundred twenty-five".