2259725 has 24 divisors (see below), whose sum is σ = 3202920. Its totient is φ = 1566720.

The previous prime is 2259707. The next prime is 2259731. The reversal of 2259725 is 5279522.

It is a happy number.

2259725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 249001 + 2010724 = 499^2 + 1418^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2259725 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2259691 and 2259700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5321 + ... + 5729.

It is an arithmetic number, because the mean of its divisors is an integer number (133455).

2^2259725 is an apocalyptic number.

2259725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2259725 is a deficient number, since it is larger than the sum of its proper divisors (943195).

2259725 is a wasteful number, since it uses less digits than its factorization.

2259725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 444 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 2259725 is about 1503.2381714153. The cubic root of 2259725 is about 131.2255888085.

It can be divided in two parts, 22597 and 25, that added together give a palindrome (22622).

The spelling of 2259725 in words is "two million, two hundred fifty-nine thousand, seven hundred twenty-five".