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55760000000 = 210571741
BaseRepresentation
bin110011111011100011…
…100001010000000000
312022221000021111012012
4303323203201100000
51403144030000000
641341002152052
74012533115445
oct637343412000
9168830244165
1055760000000
1121714080331
12a981ab2628
1353481b7953
1429ad7079cc
1516b53c1735
hexcfb8e1400

55760000000 has 352 divisors, whose sum is σ = 151125784992. Its totient is φ = 20480000000.

The previous prime is 55759999961. The next prime is 55760000011. The reversal of 55760000000 is 6755.

It can be written as a sum of positive squares in 16 ways, for example, as 15091631104 + 40668368896 = 122848^2 + 201664^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1359999980 + ... + 1360000020.

Almost surely, 255760000000 is an apocalyptic number.

55760000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55760000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75562892496).

55760000000 is an abundant number, since it is smaller than the sum of its proper divisors (95365784992).

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

55760000000 is an frugal number, since it uses more digits than its factorization.

55760000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

Adding to 55760000000 its reverse (6755), we get a palindrome (55760006755).

The spelling of 55760000000 in words is "fifty-five billion, seven hundred sixty million", and thus it is an aban number.