2522217 has 16 divisors (see below), whose sum is σ = 3551040. Its totient is φ = 1589952.

The previous prime is 2522213. The next prime is 2522227. The reversal of 2522217 is 7122252.

It is a happy number.

It is not a de Polignac number, because 2522217 - 2² = 2522213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2522193 and 2522202.

It is not an unprimeable number, because it can be changed into a prime (2522213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4338 + ... + 4884.

It is an arithmetic number, because the mean of its divisors is an integer number (221940).

2^2522217 is an apocalyptic number.

It is an amenable number.

2522217 is a deficient number, since it is larger than the sum of its proper divisors (1028823).

2522217 is a wasteful number, since it uses less digits than its factorization.

2522217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its digits is 560, while the sum is 21.

The square root of 2522217 is about 1588.1489224881. The cubic root of 2522217 is about 136.1217371623.

Adding to 2522217 its reverse (7122252), we get a palindrome (9644469).

The spelling of 2522217 in words is "two million, five hundred twenty-two thousand, two hundred seventeen".