2005625 has 10 divisors (see below), whose sum is σ = 2507010. Its totient is φ = 1604000.

The previous prime is 2005613. The next prime is 2005667. The reversal of 2005625 is 5265002.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 724201 + 1281424 = 851^2 + 1132^2 .

It is not a de Polignac number, because 2005625 - 2⁸ = 2005369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2005597 and 2005606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 980 + ... + 2229.

It is an arithmetic number, because the mean of its divisors is an integer number (250701).

2^2005625 is an apocalyptic number.

2005625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2005625 is a deficient number, since it is larger than the sum of its proper divisors (501385).

2005625 is an frugal number, since it uses more digits than its factorization.

2005625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2005625 is about 1416.2009038269. The cubic root of 2005625 is about 126.1101120254.

The spelling of 2005625 in words is "two million, five thousand, six hundred twenty-five".