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55210525044 = 22322731165171
BaseRepresentation
bin110011011010110011…
…011100000101110100
312021111201100021020220
4303122303130011310
51401032343300134
641210253054340
73663111501603
oct633263340564
9167451307226
1055210525044
11214619a16a4
12a849a873b0
13528b3cc43c
14295a753a3a
151682034149
hexcdacdc174

55210525044 has 48 divisors (see below), whose sum is σ = 129810110976. Its totient is φ = 18263240800.

The previous prime is 55210525009. The next prime is 55210525063. The reversal of 55210525044 is 44052501255.

It is a junction number, because it is equal to n+sod(n) for n = 55210524996 and 55210525014.

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 15 ways as a sum of consecutive naturals, for example, 814579 + ... + 879749.

It is an arithmetic number, because the mean of its divisors is an integer number (2704377312).

Almost surely, 255210525044 is an apocalyptic number.

It is an amenable number.

55210525044 is an abundant number, since it is smaller than the sum of its proper divisors (74599585932).

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

55210525044 is a wasteful number, since it uses less digits than its factorization.

55210525044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65716 (or 65714 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 55210525044 in words is "fifty-five billion, two hundred ten million, five hundred twenty-five thousand, forty-four".

Divisors: 1 2 3 4 6 12 227 311 454 622 681 908 933 1244 1362 1866 2724 3732 65171 70597 130342 141194 195513 211791 260684 282388 391026 423582 782052 847164 14793817 20268181 29587634 40536362 44381451 59175268 60804543 81072724 88762902 121609086 177525804 243218172 4600877087 9201754174 13802631261 18403508348 27605262522 55210525044