2688225 has 24 divisors (see below), whose sum is σ = 4514592. Its totient is φ = 1411200.

The previous prime is 2688223. The next prime is 2688233. The reversal of 2688225 is 5228862.

It is not a de Polignac number, because 2688225 - 2¹ = 2688223 is a prime.

It is a d-powerful number, because it can be written as 2¹⁰ + 6² + 8² + 8⁷ + 2¹⁶ + 2¹⁹ + 5³ .

2688225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2688221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5230 + ... + 5720.

It is an arithmetic number, because the mean of its divisors is an integer number (188108).

2^2688225 is an apocalyptic number.

2688225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2688225 is a deficient number, since it is larger than the sum of its proper divisors (1826367).

2688225 is a wasteful number, since it uses less digits than its factorization.

2688225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577 (or 572 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 2688225 is about 1639.5807390916. The cubic root of 2688225 is about 139.0449451812.

The spelling of 2688225 in words is "two million, six hundred eighty-eight thousand, two hundred twenty-five".