2125225 has 6 divisors (see below), whose sum is σ = 2635310. Its totient is φ = 1700160.

The previous prime is 2125219. The next prime is 2125229. The reversal of 2125225 is 5225212.

It can be written as a sum of positive squares in 3 ways, for example, as 156816 + 1968409 = 396^2 + 1403^2 .

It is not a de Polignac number, because 2125225 - 2¹⁵ = 2092457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42480 + ... + 42529.

2^2125225 is an apocalyptic number.

2125225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125225 is a deficient number, since it is larger than the sum of its proper divisors (510085).

2125225 is an equidigital number, since it uses as much as digits as its factorization.

2125225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85019 (or 85014 counting only the distinct ones).

The product of its digits is 400, while the sum is 19.

The square root of 2125225 is about 1457.8151460319. The cubic root of 2125225 is about 128.5686169285.

The spelling of 2125225 in words is "two million, one hundred twenty-five thousand, two hundred twenty-five".