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82552225 = 5273115217
BaseRepresentation
bin1001110101110…
…10010110100001
312202100002100211
410322322112201
5132113132400
612105214121
72021453020
oct472722641
9182302324
1082552225
1142664788
1223791341
1314144c92
14ad6c8b7
1573a9dba
hex4eba5a1

82552225 has 24 divisors (see below), whose sum is σ = 120770048. Its totient is φ = 54777600.

The previous prime is 82552213. The next prime is 82552231. The reversal of 82552225 is 52225528.

It is not a de Polignac number, because 82552225 - 25 = 82552193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2184 + ... + 13033.

Almost surely, 282552225 is an apocalyptic number.

It is an amenable number.

82552225 is a deficient number, since it is larger than the sum of its proper divisors (38217823).

82552225 is a wasteful number, since it uses less digits than its factorization.

82552225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265 (or 15260 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 82552225 is about 9085.8254990947. The cubic root of 82552225 is about 435.4212240797.

The spelling of 82552225 in words is "eighty-two million, five hundred fifty-two thousand, two hundred twenty-five".

Divisors: 1 5 7 25 31 35 155 175 217 775 1085 5425 15217 76085 106519 380425 471727 532595 2358635 2662975 3302089 11793175 16510445 82552225