Search a number
-
+
8525825 = 5271143103
BaseRepresentation
bin100000100001…
…100000000001
3121001011020022
4200201200001
54140311300
6502423225
7132316430
oct40414001
917034208
108525825
1148a3640
122a31b15
1319c6889
1411bd117
15b36285
hex821801

8525825 has 48 divisors (see below), whose sum is σ = 13618176. Its totient is φ = 5140800.

The previous prime is 8525809. The next prime is 8525831. The reversal of 8525825 is 5285258.

It is not a de Polignac number, because 8525825 - 24 = 8525809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82724 + ... + 82826.

It is an arithmetic number, because the mean of its divisors is an integer number (283712).

Almost surely, 28525825 is an apocalyptic number.

It is an amenable number.

8525825 is a deficient number, since it is larger than the sum of its proper divisors (5092351).

8525825 is a wasteful number, since it uses less digits than its factorization.

8525825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 169 counting only the distinct ones).

The product of its digits is 32000, while the sum is 35.

The square root of 8525825 is about 2919.9015394359. The cubic root of 8525825 is about 204.2892299403.

It can be divided in two parts, 8525 and 825, that multiplied together give a triangular number (7033125 = T3750).

The spelling of 8525825 in words is "eight million, five hundred twenty-five thousand, eight hundred twenty-five".

Divisors: 1 5 7 11 25 35 43 55 77 103 175 215 275 301 385 473 515 721 1075 1133 1505 1925 2365 2575 3311 3605 4429 5665 7525 7931 11825 16555 18025 22145 28325 31003 39655 48719 82775 110725 155015 198275 243595 341033 775075 1217975 1705165 8525825