2905625 has 10 divisors (see below), whose sum is σ = 3631650. Its totient is φ = 2324000.

The previous prime is 2905621. The next prime is 2905627. The reversal of 2905625 is 5265092.

It can be written as a sum of positive squares in 5 ways, for example, as 355216 + 2550409 = 596^2 + 1597^2 .

It is not a de Polignac number, because 2905625 - 2² = 2905621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1700 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (363165).

2^2905625 is an apocalyptic number.

2905625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2905625 is a deficient number, since it is larger than the sum of its proper divisors (726025).

2905625 is an frugal number, since it uses more digits than its factorization.

2905625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2905625 is about 1704.5893933731. The cubic root of 2905625 is about 142.6964562312.

The spelling of 2905625 in words is "two million, nine hundred five thousand, six hundred twenty-five".