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89525089525 = 5210135819901
BaseRepresentation
bin101001101100000011…
…1000111010011110101
322120002011020202102111
41103120013013103311
52431321410331100
6105043253211021
76316341463624
oct1233007072365
9276064222374
1089525089525
1134a706408a3
1215425930a71
138599613071
144493bd76bb
1524de81c6ba
hex14d81c74f5

89525089525 has 24 divisors (see below), whose sum is σ = 112152864168. Its totient is φ = 70884000000.

The previous prime is 89525089519. The next prime is 89525089547. The reversal of 89525089525 is 52598052598.

It can be written as a sum of positive squares in 12 ways, for example, as 6613918276 + 82911171249 = 81326^2 + 287943^2 .

It is not a de Polignac number, because 89525089525 - 23 = 89525089517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89525089525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9037075 + ... + 9046975.

It is an arithmetic number, because the mean of its divisors is an integer number (4673036007).

Almost surely, 289525089525 is an apocalyptic number.

It is an amenable number.

89525089525 is a deficient number, since it is larger than the sum of its proper divisors (22627774643).

89525089525 is a wasteful number, since it uses less digits than its factorization.

89525089525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13593 (or 13588 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 58.

The spelling of 89525089525 in words is "eighty-nine billion, five hundred twenty-five million, eighty-nine thousand, five hundred twenty-five".

Divisors: 1 5 25 101 505 2525 3581 9901 17905 49505 89525 247525 361681 1000001 1808405 5000005 9042025 25000025 35455481 177277405 886387025 3581003581 17905017905 89525089525