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55501544370 = 23543337127669
BaseRepresentation
bin110011101100001001…
…100101101110110010
312022020222221120201110
4303230021211232302
51402131343404440
641255210414150
74003244225466
oct635411455662
9168228846643
1055501544370
11215a11a1838
12a90b431356
1353067a461c
14298726a4a6
15169c86c080
hexcec265bb2

55501544370 has 64 divisors (see below), whose sum is σ = 136706993280. Its totient is φ = 14413206528.

The previous prime is 55501544339. The next prime is 55501544377. The reversal of 55501544370 is 7344510555.

It is not an unprimeable number, because it can be changed into a prime (55501544377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370896 + ... + 498564.

It is an arithmetic number, because the mean of its divisors is an integer number (2136046770).

Almost surely, 255501544370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55501544370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68353496640).

55501544370 is an abundant number, since it is smaller than the sum of its proper divisors (81205448910).

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

55501544370 is a wasteful number, since it uses less digits than its factorization.

55501544370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128059.

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 55501544370 in words is "fifty-five billion, five hundred one million, five hundred forty-four thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 337 430 645 674 1011 1290 1685 2022 3370 5055 10110 14491 28982 43473 72455 86946 127669 144910 217365 255338 383007 434730 638345 766014 1276690 1915035 3830070 5489767 10979534 16469301 27448835 32938602 43024453 54897670 82346505 86048906 129073359 164693010 215122265 258146718 430244530 645366795 1290733590 1850051479 3700102958 5550154437 9250257395 11100308874 18500514790 27750772185 55501544370