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12567025 = 527092
BaseRepresentation
bin101111111100…
…000111110001
3212122110201101
4233330013301
511204121100
61125204401
7211550362
oct57740761
925573641
1012567025
117103879
124260701
1327b0113
141951b69
15118386a
hexbfc1f1

12567025 has 9 divisors (see below), whose sum is σ = 15605121. Its totient is φ = 10039440.

The previous prime is 12567019. The next prime is 12567073. The reversal of 12567025 is 52076521.

The square root of 12567025 is 3545.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3470769 + 9096256 = 1863^2 + 3016^2 .

It is not a de Polignac number, because 12567025 - 23 = 12567017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12566984 and 12567002.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17371 + ... + 18079.

Almost surely, 212567025 is an apocalyptic number.

12567025 is the 3545-th square number.

12567025 is the 1773-rd centered octagonal number.

It is an amenable number.

12567025 is a deficient number, since it is larger than the sum of its proper divisors (3038096).

12567025 is an frugal number, since it uses more digits than its factorization.

12567025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The cubic root of 12567025 is about 232.4935058116.

It can be divided in two parts, 1256 and 7025, that added together give a square (8281 = 912).

The spelling of 12567025 in words is "twelve million, five hundred sixty-seven thousand, twenty-five".

Divisors: 1 5 25 709 3545 17725 502681 2513405 12567025