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55050510620 = 22574725913229
BaseRepresentation
bin110011010001010001…
…000010000100011100
312021002120020200201202
4303101101002010130
51400220412314440
641142335255032
73656126422340
oct632121020434
9167076220652
1055050510620
112138a63a476
12a80437a478
135264205251
1429433bd620
151672e77615
hexcd144211c

55050510620 has 96 divisors (see below), whose sum is σ = 135026196480. Its totient is φ = 18460028160.

The previous prime is 55050510617. The next prime is 55050510629. The reversal of 55050510620 is 2601505055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050510629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17047166 + ... + 17050394.

It is an arithmetic number, because the mean of its divisors is an integer number (1406522880).

Almost surely, 255050510620 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 55050510620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67513098240).

55050510620 is an abundant number, since it is smaller than the sum of its proper divisors (79975685860).

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

55050510620 is a wasteful number, since it uses less digits than its factorization.

55050510620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883 (or 5881 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 55050510620 in words is "fifty-five billion, fifty million, five hundred ten thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 70 94 140 188 235 329 470 658 940 1316 1645 2591 3229 3290 5182 6458 6580 10364 12916 12955 16145 18137 22603 25910 32290 36274 45206 51820 64580 72548 90412 90685 113015 121777 151763 181370 226030 243554 303526 362740 452060 487108 607052 608885 758815 852439 1062341 1217770 1517630 1704878 2124682 2435540 3035260 3409756 4249364 4262195 5311705 8366339 8524390 10623410 16732678 17048780 21246820 33465356 41831695 58564373 83663390 117128746 167326780 234257492 292821865 393217933 585643730 786435866 1171287460 1572871732 1966089665 2752525531 3932179330 5505051062 7864358660 11010102124 13762627655 27525255310 55050510620