2225551 has 8 divisors (see below), whose sum is σ = 2311760. Its totient is φ = 2140992.

The previous prime is 2225543. The next prime is 2225557. The reversal of 2225551 is 1555222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2225551 - 2³ = 2225543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2785 + ... + 3493.

It is an arithmetic number, because the mean of its divisors is an integer number (288970).

2^2225551 is an apocalyptic number.

2225551 is a deficient number, since it is larger than the sum of its proper divisors (86209).

2225551 is an equidigital number, since it uses as much as digits as its factorization.

2225551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its digits is 1000, while the sum is 22.

The square root of 2225551 is about 1491.8280732041. The cubic root of 2225551 is about 130.5607141533.

The spelling of 2225551 in words is "two million, two hundred twenty-five thousand, five hundred fifty-one".