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55125020832 = 2537269304949
BaseRepresentation
bin110011010101101101…
…010001000010100000
312021021202110012112020
4303111231101002200
51400344001131312
641154000301440
73661022642310
oct632555210240
9167252405466
1055125020832
1121418701062
12a825311880
13527679292b
14294d257440
15167979478c
hexcd5b510a0

55125020832 has 96 divisors (see below), whose sum is σ = 165990384000. Its totient is φ = 15691404288.

The previous prime is 55125020827. The next prime is 55125020837. The reversal of 55125020832 is 23802052155.

It is an interprime number because it is at equal distance from previous prime (55125020827) and next prime (55125020837).

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 55125020793 and 55125020802.

It is not an unprimeable number, because it can be changed into a prime (55125020837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28294 + ... + 333242.

It is an arithmetic number, because the mean of its divisors is an integer number (1729066500).

Almost surely, 255125020832 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 55125020832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82995192000).

55125020832 is an abundant number, since it is smaller than the sum of its proper divisors (110865363168).

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

55125020832 is a wasteful number, since it uses less digits than its factorization.

55125020832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305238 (or 305230 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 55125020832 its reverse (23802052155), we get a palindrome (78927072987).

The spelling of 55125020832 in words is "fifty-five billion, one hundred twenty-five million, twenty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 269 336 538 672 807 1076 1614 1883 2152 3228 3766 4304 5649 6456 7532 8608 11298 12912 15064 22596 25824 30128 45192 60256 90384 180768 304949 609898 914847 1219796 1829694 2134643 2439592 3659388 4269286 4879184 6403929 7318776 8538572 9758368 12807858 14637552 17077144 25615716 29275104 34154288 51231432 68308576 82031281 102462864 164062562 204925728 246093843 328125124 492187686 574218967 656250248 984375372 1148437934 1312500496 1722656901 1968750744 2296875868 2625000992 3445313802 3937501488 4593751736 6890627604 7875002976 9187503472 13781255208 18375006944 27562510416 55125020832