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55053103512 = 233117913671931
BaseRepresentation
bin110011010001011010…
…111011000110011000
312021002202010102111210
4303101122323012120
51400222043303022
641142511023120
73656160441651
oct632132730630
9167082112453
1055053103512
1121391050560
12a80520aaa0
1352649024c4
142943896528
1516732daa0c
hexcd16bb198

55053103512 has 128 divisors (see below), whose sum is σ = 152235417600. Its totient is φ = 16451011200.

The previous prime is 55053103493. The next prime is 55053103541. The reversal of 55053103512 is 21530135055.

55053103512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55053103512.

It is a congruent number.

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, 28509187 + ... + 28511117.

It is an arithmetic number, because the mean of its divisors is an integer number (1189339200).

Almost surely, 255053103512 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 55053103512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76117708800).

55053103512 is an abundant number, since it is smaller than the sum of its proper divisors (97182314088).

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

55053103512 is a wasteful number, since it uses less digits than its factorization.

55053103512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

Adding to 55053103512 its reverse (21530135055), we get a palindrome (76583238567).

The spelling of 55053103512 in words is "fifty-five billion, fifty-three million, one hundred three thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 79 88 132 158 237 264 316 474 632 869 948 1367 1738 1896 1931 2607 2734 3476 3862 4101 5214 5468 5793 6952 7724 8202 10428 10936 11586 15037 15448 16404 20856 21241 23172 30074 32808 42482 45111 46344 60148 63723 84964 90222 107993 120296 127446 152549 169928 180444 215986 254892 305098 323979 360888 431972 457647 509784 610196 647958 863944 915294 1187923 1220392 1295916 1678039 1830588 2375846 2591832 2639677 3356078 3563769 3661176 4751692 5034117 5279354 6712156 7127538 7919031 9503384 10068234 10558708 13424312 14255076 15838062 20136468 21117416 28510152 29036447 31676124 40272936 58072894 63352248 87109341 116145788 174218682 208534483 232291576 348437364 417068966 625603449 696874728 834137932 1251206898 1668275864 2293879313 2502413796 4587758626 5004827592 6881637939 9175517252 13763275878 18351034504 27526551756 55053103512