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87525601 = 791378087
BaseRepresentation
bin1010011011110…
…00100011100001
320002200202112221
411031320203201
5134401304401
612403551041
72111645452
oct515704341
9202622487
1087525601
1145451309
122538b481
13151968c7
14b8a5129
157a3d7a1
hex53788e1

87525601 has 8 divisors (see below), whose sum is σ = 89291520. Its totient is φ = 85776288.

The previous prime is 87525587. The next prime is 87525643. The reversal of 87525601 is 10652578.

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 87525601 - 29 = 87525089 is a prime.

It is a super-3 number, since 3×875256013 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87525901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6780 + ... + 14866.

It is an arithmetic number, because the mean of its divisors is an integer number (11161440).

Almost surely, 287525601 is an apocalyptic number.

It is an amenable number.

87525601 is a deficient number, since it is larger than the sum of its proper divisors (1765919).

87525601 is a wasteful number, since it uses less digits than its factorization.

87525601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8303.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 87525601 is about 9355.5117978655. The cubic root of 87525601 is about 443.9952942309.

The spelling of 87525601 in words is "eighty-seven million, five hundred twenty-five thousand, six hundred one".

Divisors: 1 79 137 8087 10823 638873 1107919 87525601