2605825 has 6 divisors (see below), whose sum is σ = 3231254. Its totient is φ = 2084640.

The previous prime is 2605819. The next prime is 2605847. The reversal of 2605825 is 5285062.

It can be written as a sum of positive squares in 3 ways, for example, as 364816 + 2241009 = 604^2 + 1497^2 .

It is not a de Polignac number, because 2605825 - 2⁹ = 2605313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2605793 and 2605802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52092 + ... + 52141.

2^2605825 is an apocalyptic number.

2605825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2605825 is a deficient number, since it is larger than the sum of its proper divisors (625429).

2605825 is a wasteful number, since it uses less digits than its factorization.

2605825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104243 (or 104238 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2605825 is about 1614.2567949369. The cubic root of 2605825 is about 137.6094995526.

The spelling of 2605825 in words is "two million, six hundred five thousand, eight hundred twenty-five".