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55375130540 = 225172941136979
BaseRepresentation
bin110011100100100111…
…010110111110101100
312021221012002002112202
4303210213112332230
51401402013134130
641234453121032
74000150562162
oct634447267654
9167835062482
1055375130540
11215368aa1a4
12a895029178
1352b6543242
142974561232
1516916eb145
hexce49d6fac

55375130540 has 96 divisors (see below), whose sum is σ = 130481668800. Its totient is φ = 19637166080.

The previous prime is 55375130537. The next prime is 55375130593. The reversal of 55375130540 is 4503157355.

It is a junction number, because it is equal to n+sod(n) for n = 55375130494 and 55375130503.

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, 335771 + ... + 472749.

It is an arithmetic number, because the mean of its divisors is an integer number (1359184050).

Almost surely, 255375130540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55375130540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65240834400).

55375130540 is an abundant number, since it is smaller than the sum of its proper divisors (75106538260).

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

55375130540 is a wasteful number, since it uses less digits than its factorization.

55375130540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137075 (or 137073 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 38.

Adding to 55375130540 its reverse (4503157355), we get a palindrome (59878287895).

The spelling of 55375130540 in words is "fifty-five billion, three hundred seventy-five million, one hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 17 20 29 34 41 58 68 82 85 116 145 164 170 205 290 340 410 493 580 697 820 986 1189 1394 1972 2378 2465 2788 3485 4756 4930 5945 6970 9860 11890 13940 20213 23780 40426 80852 101065 136979 202130 273958 404260 547916 684895 1369790 2328643 2739580 3972391 4657286 5616139 7944782 9314572 11232278 11643215 15889564 19861955 22464556 23286430 28080695 39723910 46572860 56161390 67530647 79447820 95474363 112322780 135061294 162868031 190948726 270122588 325736062 337653235 381897452 477371815 651472124 675306470 814340155 954743630 1350612940 1628680310 1909487260 2768756527 3257360620 5537513054 11075026108 13843782635 27687565270 55375130540