2225605 has 8 divisors (see below), whose sum is σ = 2763000. Its totient is φ = 1718976.

The previous prime is 2225599. The next prime is 2225621. The reversal of 2225605 is 5065222.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 2090916 = 367^2 + 1446^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2225605 - 2¹⁵ = 2192837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7530 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (345375).

2^2225605 is an apocalyptic number.

It is an amenable number.

2225605 is a deficient number, since it is larger than the sum of its proper divisors (537395).

2225605 is a wasteful number, since it uses less digits than its factorization.

2225605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15383.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2225605 is about 1491.8461716947. The cubic root of 2225605 is about 130.5617701047.

The spelling of 2225605 in words is "two million, two hundred twenty-five thousand, six hundred five".