2225657 has 16 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 1759488.

The previous prime is 2225653. The next prime is 2225659. The reversal of 2225657 is 7565222.

It is a cyclic number.

It is not a de Polignac number, because 2225657 - 2² = 2225653 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 2²⁰ + 2²⁰ + 5⁵ + 6⁶ + 5⁷ + 7³ .

It is a Duffinian number.

Its product of digits (8400) is a multiple of the sum of its prime divisors (400).

It is not an unprimeable number, because it can be changed into a prime (2225653) 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, 6863 + ... + 7179.

It is an arithmetic number, because the mean of its divisors is an integer number (171720).

2^2225657 is an apocalyptic number.

It is an amenable number.

2225657 is a deficient number, since it is larger than the sum of its proper divisors (521863).

2225657 is a wasteful number, since it uses less digits than its factorization.

2225657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its digits is 8400, while the sum is 29.

The square root of 2225657 is about 1491.8635996632. The cubic root of 2225657 is about 130.5627869307.

It can be divided in two parts, 2225 and 657, that added together give a palindrome (2882).

The spelling of 2225657 in words is "two million, two hundred twenty-five thousand, six hundred fifty-seven".