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55555561111060 = 22561449101419477
BaseRepresentation
bin11001010000111000010010…
…11111000011111000010100
321021201001121120111222122201
430220130021133003320110
524240210242121023220
6314053512240334244
714462520410622313
oct1450341137037024
9237631546458581
1055555561111060
1116779a87a0a14a
126293059014384
1324ccb3686428a
14da0c9130827a
156651dab9ad0a
hex3287097c3e14

55555561111060 has 48 divisors (see below), whose sum is σ = 118843344320400. Its totient is φ = 21809244119040.

The previous prime is 55555561111009. The next prime is 55555561111079. The reversal of 55555561111060 is 6011116555555.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 16751781295236 + 38803779815824 = 4092894^2 + 6229268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55555561111060.

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, 50161959 + ... + 51257518.

It is an arithmetic number, because the mean of its divisors is an integer number (2475903006675).

Almost surely, 255555561111060 is an apocalyptic number.

It is an amenable number.

55555561111060 is an abundant number, since it is smaller than the sum of its proper divisors (63287783209340).

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

55555561111060 is a wasteful number, since it uses less digits than its factorization.

55555561111060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101419996 (or 101419994 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 55555561111060 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred sixty-one million, one hundred eleven thousand, sixty".

Divisors: 1 2 4 5 10 20 61 122 244 305 449 610 898 1220 1796 2245 4490 8980 27389 54778 109556 136945 273890 547780 101419477 202838954 405677908 507097385 1014194770 2028389540 6186588097 12373176194 24746352388 30932940485 45537345173 61865880970 91074690346 123731761940 182149380692 227686725865 455373451730 910746903460 2777778055553 5555556111106 11111112222212 13888890277765 27777780555530 55555561111060