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12525005 = 517147353
BaseRepresentation
bin101111110001…
…110111001101
3212120100002002
4233301313031
511201300010
61124242045
7211314023
oct57616715
925510062
1012525005
117085249
124240325
132796c5c
141940713
1511761a5
hexbf1dcd

12525005 has 8 divisors (see below), whose sum is σ = 15914232. Its totient is φ = 9430528.

The previous prime is 12524977. The next prime is 12525043. The reversal of 12525005 is 50052521.

It can be written as a sum of positive squares in 4 ways, for example, as 316969 + 12208036 = 563^2 + 3494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12525005 - 210 = 12523981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73592 + ... + 73761.

It is an arithmetic number, because the mean of its divisors is an integer number (1989279).

Almost surely, 212525005 is an apocalyptic number.

It is an amenable number.

12525005 is a deficient number, since it is larger than the sum of its proper divisors (3389227).

12525005 is a wasteful number, since it uses less digits than its factorization.

12525005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147375.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 12525005 is about 3539.0683802379. The cubic root of 12525005 is about 232.2340891792.

Adding to 12525005 its reverse (50052521), we get a palindrome (62577526).

The spelling of 12525005 in words is "twelve million, five hundred twenty-five thousand, five".

Divisors: 1 5 17 85 147353 736765 2505001 12525005