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25928485 = 5112172521
BaseRepresentation
bin110001011101…
…0001100100101
31210210022012021
41202322030211
523114202420
62323423141
7433250152
oct142721445
953708167
1025928485
11136aa500
128824ab1
1354aa9cb
14362d229
1524227aa
hex18ba325

25928485 has 24 divisors (see below), whose sum is σ = 36226008. Its totient is φ = 17740800.

The previous prime is 25928479. The next prime is 25928489. The reversal of 25928485 is 58482952.

It can be written as a sum of positive squares in 4 ways, for example, as 213444 + 25715041 = 462^2 + 5071^2 .

It is not a de Polignac number, because 25928485 - 211 = 25926437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25928489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9025 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (1509417).

Almost surely, 225928485 is an apocalyptic number.

It is an amenable number.

25928485 is a deficient number, since it is larger than the sum of its proper divisors (10297523).

25928485 is a wasteful number, since it uses less digits than its factorization.

25928485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2554 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 25928485 is about 5092.0020620577. The cubic root of 25928485 is about 295.9777383124.

The spelling of 25928485 in words is "twenty-five million, nine hundred twenty-eight thousand, four hundred eighty-five".

Divisors: 1 5 11 17 55 85 121 187 605 935 2057 2521 10285 12605 27731 42857 138655 214285 305041 471427 1525205 2357135 5185697 25928485