2722225 has 24 divisors (see below), whose sum is σ = 3883680. Its totient is φ = 1872000.

The previous prime is 2722219. The next prime is 2722231. The reversal of 2722225 is 5222272.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2722219) and next prime (2722231).

It is not a de Polignac number, because 2722225 - 2¹⁵ = 2689457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2722196 and 2722205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4965 + ... + 5485.

It is an arithmetic number, because the mean of its divisors is an integer number (161820).

2^2722225 is an apocalyptic number.

2722225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2722225 is a deficient number, since it is larger than the sum of its proper divisors (1161455).

2722225 is a wasteful number, since it uses less digits than its factorization.

2722225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 556 counting only the distinct ones).

The product of its digits is 1120, while the sum is 22.

The square root of 2722225 is about 1649.9166645622. The cubic root of 2722225 is about 139.6286929634.

Adding to 2722225 its reverse (5222272), we get a palindrome (7944497).

It can be divided in two parts, 2 and 722225, that added together give a palindrome (722227).

The spelling of 2722225 in words is "two million, seven hundred twenty-two thousand, two hundred twenty-five".