2405825 has 6 divisors (see below), whose sum is σ = 2983254. Its totient is φ = 1924640.

The previous prime is 2405813. The next prime is 2405831. The reversal of 2405825 is 5285042.

It can be written as a sum of positive squares in 3 ways, for example, as 602176 + 1803649 = 776^2 + 1343^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2405825 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2405794 and 2405803.

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, 48092 + ... + 48141.

It is an arithmetic number, because the mean of its divisors is an integer number (497209).

2^2405825 is an apocalyptic number.

2405825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2405825 is a deficient number, since it is larger than the sum of its proper divisors (577429).

2405825 is an equidigital number, since it uses as much as digits as its factorization.

2405825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96243 (or 96238 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2405825 is about 1551.0722097955. The cubic root of 2405825 is about 133.9948204726.

The spelling of 2405825 in words is "two million, four hundred five thousand, eight hundred twenty-five".