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2578325 = 52151683
BaseRepresentation
bin1001110101011110010101
311211222210112
421311132111
51130001300
6131132405
730625661
oct11653625
94758715
102578325
111501152
12a44105
136c3749
144b18a1
1535de35
hex275795

2578325 has 12 divisors (see below), whose sum is σ = 3223008. Its totient is φ = 2046000.

The previous prime is 2578297. The next prime is 2578343. The reversal of 2578325 is 5238752.

It is not a de Polignac number, because 2578325 - 216 = 2512789 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2578291 and 2578300.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3434 + ... + 4116.

It is an arithmetic number, because the mean of its divisors is an integer number (268584).

22578325 is an apocalyptic number.

2578325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2578325 is a deficient number, since it is larger than the sum of its proper divisors (644683).

2578325 is a wasteful number, since it uses less digits than its factorization.

2578325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 839 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 2578325 is about 1605.7163510409. The cubic root of 2578325 is about 137.1237094527.

The spelling of 2578325 in words is "two million, five hundred seventy-eight thousand, three hundred twenty-five".

Divisors: 1 5 25 151 683 755 3415 3775 17075 103133 515665 2578325