2775225 has 12 divisors (see below), whose sum is σ = 4588496. Its totient is φ = 1480080.

The previous prime is 2775221. The next prime is 2775247. The reversal of 2775225 is 5225772.

2775225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2775225 - 2² = 2775221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2775192 and 2775201.

It is not an unprimeable number, because it can be changed into a prime (2775221) 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 11 ways as a sum of consecutive naturals, for example, 18427 + ... + 18576.

2^2775225 is an apocalyptic number.

2775225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2775225 is a deficient number, since it is larger than the sum of its proper divisors (1813271).

2775225 is a wasteful number, since it uses less digits than its factorization.

2775225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37016 (or 37011 counting only the distinct ones).

The product of its digits is 9800, while the sum is 30.

The square root of 2775225 is about 1665.9006573022. The cubic root of 2775225 is about 140.5290357623.

The spelling of 2775225 in words is "two million, seven hundred seventy-five thousand, two hundred twenty-five".