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85525053 = 3131269809
BaseRepresentation
bin1010001100100…
…00001000111101
312221221010022120
411012100020331
5133343300203
612253033153
72055644115
oct506201075
9187833276
1085525053
1144305269
12247857b9
1314946153
14b504045
157795b53
hex519023d

85525053 has 16 divisors (see below), whose sum is σ = 115473600. Its totient is φ = 56301440.

The previous prime is 85525051. The next prime is 85525073. The reversal of 85525053 is 35052558.

It is a cyclic number.

It is not a de Polignac number, because 85525053 - 21 = 85525051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85525051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105313 + ... + 106121.

It is an arithmetic number, because the mean of its divisors is an integer number (7217100).

Almost surely, 285525053 is an apocalyptic number.

It is an amenable number.

85525053 is a deficient number, since it is larger than the sum of its proper divisors (29948547).

85525053 is a wasteful number, since it uses less digits than its factorization.

85525053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 85525053 is about 9247.9756163173. The cubic root of 85525053 is about 440.5864305257.

The spelling of 85525053 in words is "eighty-five million, five hundred twenty-five thousand, fifty-three".

Divisors: 1 3 131 269 393 807 809 2427 35239 105717 105979 217621 317937 652863 28508351 85525053