2604925 has 12 divisors (see below), whose sum is σ = 3342420.
Its totient is φ = 2011520.
The previous prime is 2604913. The next prime is 2604949. The reversal of 2604925 is 5294062.
It can be written as a sum of positive squares in 6 ways, for example, as 127449 + 2477476 = 357^2 + 1574^2
It is not a de Polignac number, because 2604925 - 211 = 2602877 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2604893 and 2604902.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1072 + ... + 2521.
It is an arithmetic number, because the mean of its divisors is an integer number (278535).
22604925 is an apocalyptic number.
2604925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2604925 is a deficient number, since it is larger than the sum of its proper divisors (737495).
2604925 is a wasteful number, since it uses less digits than its factorization.
2604925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3632 (or 3627 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 2604925 is about 1613.9780048068.
The cubic root of 2604925 is about 137.5936552025.
Adding to 2604925 its reverse (5294062), we get a palindrome (7898987).
The spelling of 2604925 in words is "two million, six hundred four thousand, nine hundred twenty-five".