2917225 has 6 divisors (see below), whose sum is σ = 3617390. Its totient is φ = 2333760.

The previous prime is 2917223. The next prime is 2917237. The reversal of 2917225 is 5227192.

It can be written as a sum of positive squares in 3 ways, for example, as 788544 + 2128681 = 888^2 + 1459^2 .

It is not a de Polignac number, because 2917225 - 2¹ = 2917223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2917193 and 2917202.

It is not an unprimeable number, because it can be changed into a prime (2917223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58320 + ... + 58369.

2^2917225 is an apocalyptic number.

2917225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2917225 is a deficient number, since it is larger than the sum of its proper divisors (700165).

2917225 is a wasteful number, since it uses less digits than its factorization.

2917225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116699 (or 116694 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 2917225 is about 1707.9885831000. The cubic root of 2917225 is about 142.8860977024.

The spelling of 2917225 in words is "two million, nine hundred seventeen thousand, two hundred twenty-five".