2522225 has 12 divisors (see below), whose sum is σ = 3148236. Its totient is φ = 2004480.

The previous prime is 2522213. The next prime is 2522227. The reversal of 2522225 is 5222252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 628849 + 1893376 = 793^2 + 1376^2 .

It is not a de Polignac number, because 2522225 - 2⁴ = 2522209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2522197 and 2522206.

It is not an unprimeable number, because it can be changed into a prime (2522227) 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, 5609 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (262353).

2^2522225 is an apocalyptic number.

2522225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2522225 is a deficient number, since it is larger than the sum of its proper divisors (626011).

2522225 is a wasteful number, since it uses less digits than its factorization.

2522225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 671 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 2522225 is about 1588.1514411416. The cubic root of 2522225 is about 136.1218810797.

Adding to 2522225 its reverse (5222252), we get a palindrome (7744477).

The spelling of 2522225 in words is "two million, five hundred twenty-two thousand, two hundred twenty-five".