2777225 has 12 divisors (see below), whose sum is σ = 3757200. Its totient is φ = 2019600.

The previous prime is 2777219. The next prime is 2777231. The reversal of 2777225 is 5227772.

It is an interprime number because it is at equal distance from previous prime (2777219) and next prime (2777231).

It is not a de Polignac number, because 2777225 - 2⁶ = 2777161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2777191 and 2777200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4775 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (313100).

2^2777225 is an apocalyptic number.

2777225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2777225 is a deficient number, since it is larger than the sum of its proper divisors (979975).

2777225 is a wasteful number, since it uses less digits than its factorization.

2777225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120 (or 10115 counting only the distinct ones).

The product of its digits is 13720, while the sum is 32.

The square root of 2777225 is about 1666.5008250823. The cubic root of 2777225 is about 140.5627856483.

The spelling of 2777225 in words is "two million, seven hundred seventy-seven thousand, two hundred twenty-five".