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56550510015 = 3553257276781
BaseRepresentation
bin110100101010101011…
…000100110110111111
312101222002202120001220
4310222223010312333
51411303412310030
641551241404423
74041242255406
oct645253046677
9171862676056
1056550510015
1121a8a31a19a
12ab62799713
135442bc715c
142a466c263d
15170e9c1a10
hexd2aac4dbf

56550510015 has 32 divisors (see below), whose sum is σ = 92547043776. Its totient is φ = 29475962880.

The previous prime is 56550510011. The next prime is 56550510041. The reversal of 56550510015 is 51001505565.

It is not a de Polignac number, because 56550510015 - 22 = 56550510011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56550510011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65925 + ... + 342705.

It is an arithmetic number, because the mean of its divisors is an integer number (2892095118).

Almost surely, 256550510015 is an apocalyptic number.

56550510015 is a deficient number, since it is larger than the sum of its proper divisors (35996533761).

56550510015 is a wasteful number, since it uses less digits than its factorization.

56550510015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277099.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 56550510015 in words is "fifty-six billion, five hundred fifty million, five hundred ten thousand, fifteen".

Divisors: 1 3 5 15 53 159 257 265 771 795 1285 3855 13621 40863 68105 204315 276781 830343 1383905 4151715 14669393 44008179 71132717 73346965 213398151 220040895 355663585 1066990755 3770034001 11310102003 18850170005 56550510015