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55078250508 = 2233937544273
BaseRepresentation
bin110011010010111010…
…110110100000001100
312021011111110000201000
4303102322312200030
51400300013004013
641145210020300
73656614255551
oct632272664014
9167144400630
1055078250508
11213a42668a6
12a811717690
135269b98598
142946d60a28
151675606973
hexcd2eb680c

55078250508 has 48 divisors (see below), whose sum is σ = 142948123360. Its totient is φ = 18339789312.

The previous prime is 55078250501. The next prime is 55078250519. The reversal of 55078250508 is 80505287055.

55078250508 is a `hidden beast` number, since 5 + 50 + 78 + 25 + 0 + 508 = 666.

It is a super-2 number, since 2×550782505082 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55078250501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170941 + ... + 373332.

Almost surely, 255078250508 is an apocalyptic number.

It is an amenable number.

55078250508 is an abundant number, since it is smaller than the sum of its proper divisors (87869872852).

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

55078250508 is a wasteful number, since it uses less digits than its factorization.

55078250508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545223 (or 545215 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The spelling of 55078250508 in words is "fifty-five billion, seventy-eight million, two hundred fifty thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 937 1874 2811 3748 5622 8433 11244 16866 25299 33732 50598 101196 544273 1088546 1632819 2177092 3265638 4898457 6531276 9796914 14695371 19593828 29390742 58781484 509983801 1019967602 1529951403 2039935204 3059902806 4589854209 6119805612 9179708418 13769562627 18359416836 27539125254 55078250508