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13725525 = 35211127131
BaseRepresentation
bin110100010110…
…111101010101
3221211022212210
4310112331111
512003204100
61210104033
7224444052
oct64267525
927738783
1013725525
117825210
12471b019
132ac7518
141b74029
151311c50
hexd16f55

13725525 has 48 divisors (see below), whose sum is σ = 25141248. Its totient is φ = 6552000.

The previous prime is 13725499. The next prime is 13725527. The reversal of 13725525 is 52552731.

It is not a de Polignac number, because 13725525 - 25 = 13725493 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13725492 and 13725501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13725527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104710 + ... + 104840.

It is an arithmetic number, because the mean of its divisors is an integer number (523776).

Almost surely, 213725525 is an apocalyptic number.

13725525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13725525 is a deficient number, since it is larger than the sum of its proper divisors (11415723).

13725525 is a wasteful number, since it uses less digits than its factorization.

13725525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 277 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 13725525 is about 3704.7975653199. The cubic root of 13725525 is about 239.4287629742.

The spelling of 13725525 in words is "thirteen million, seven hundred twenty-five thousand, five hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 127 131 165 275 381 393 635 655 825 1397 1441 1905 1965 3175 3275 4191 4323 6985 7205 9525 9825 16637 20955 21615 34925 36025 49911 83185 104775 108075 183007 249555 415925 549021 915035 1247775 2745105 4575175 13725525