2078225 has 12 divisors (see below), whose sum is σ = 2606604. Its totient is φ = 1643520.

The previous prime is 2078221. The next prime is 2078243. The reversal of 2078225 is 5228702.

It can be written as a sum of positive squares in 6 ways, for example, as 16129 + 2062096 = 127^2 + 1436^2 .

It is not a de Polignac number, because 2078225 - 2² = 2078221 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2078194 and 2078203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078221) 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, 1997 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (217217).

2^2078225 is an apocalyptic number.

2078225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2078225 is a deficient number, since it is larger than the sum of its proper divisors (528379).

2078225 is an equidigital number, since it uses as much as digits as its factorization.

2078225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2078225 is about 1441.6050083154. The cubic root of 2078225 is about 127.6137649220.

The spelling of 2078225 in words is "two million, seventy-eight thousand, two hundred twenty-five".