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55001710205 = 5137311591509
BaseRepresentation
bin110011001110010110…
…110111111001111101
312020222011102101010222
4303032112313321331
51400120414211310
641133433311125
73654664552151
oct631626677175
9166864371128
1055001710205
1121365038a52
12a7abb654a5
135257079b70
14293ab19061
15166da38055
hexcce5b7e7d

55001710205 has 16 divisors (see below), whose sum is σ = 72052826160. Its totient is φ = 40060251648.

The previous prime is 55001710187. The next prime is 55001710219. The reversal of 55001710205 is 50201710055.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 68194564 + 54933515641 = 8258^2 + 234379^2 .

It is a cyclic number.

It is not a de Polignac number, because 55001710205 - 222 = 54997515901 is a prime.

It is a super-2 number, since 2×550017102052 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5791010 + ... + 5800499.

It is an arithmetic number, because the mean of its divisors is an integer number (4503301635).

Almost surely, 255001710205 is an apocalyptic number.

It is an amenable number.

55001710205 is a deficient number, since it is larger than the sum of its proper divisors (17051115955).

55001710205 is a wasteful number, since it uses less digits than its factorization.

55001710205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11591600.

The product of its (nonzero) digits is 1750, while the sum is 26.

The spelling of 55001710205 in words is "fifty-five billion, one million, seven hundred ten thousand, two hundred five".

Divisors: 1 5 13 65 73 365 949 4745 11591509 57957545 150689617 753448085 846180157 4230900785 11000342041 55001710205