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25500560050 = 2527569128047
BaseRepresentation
bin10111101111111100…
…111010101010110010
32102211011210200010001
4113233330322222302
5404211120410200
615414221300214
71561633120060
oct275774725262
972734720101
1025500560050
11a8a6446219
124b3810466a
1325351564b4
14133ca47030
159e3aeb76a
hex5eff3aab2

25500560050 has 48 divisors (see below), whose sum is σ = 54302595840. Its totient is φ = 8727615360.

The previous prime is 25500560017. The next prime is 25500560051. The reversal of 25500560050 is 5006500552.

It is not an unprimeable number, because it can be changed into a prime (25500560051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135127 + ... + 263173.

It is an arithmetic number, because the mean of its divisors is an integer number (1131304080).

Almost surely, 225500560050 is an apocalyptic number.

25500560050 is an abundant number, since it is smaller than the sum of its proper divisors (28802035790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25500560050 is a wasteful number, since it uses less digits than its factorization.

25500560050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128635 (or 128630 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 25500560050 in words is "twenty-five billion, five hundred million, five hundred sixty thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 569 1138 2845 3983 5690 7966 14225 19915 28450 39830 99575 128047 199150 256094 640235 896329 1280470 1792658 3201175 4481645 6402350 8963290 22408225 44816450 72858743 145717486 364293715 510011201 728587430 1020022402 1821468575 2550056005 3642937150 5100112010 12750280025 25500560050