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55251212251054 = 21031283209048923
BaseRepresentation
bin11001001000000001011001…
…11000010010111110101110
321020121222000222102222111111
430210000230320102332232
524220213440314013204
6313302020112142234
714431524355164541
oct1444005470227656
9236558028388444
1055251212251054
11166719a8a12a76
12624407b23797a
1324aa222a69931
14d9025c7a0858
1565c326805d04
hex32402ce12fae

55251212251054 has 16 divisors (see below), whose sum is σ = 83746671345792. Its totient is φ = 27336073236408.

The previous prime is 55251212251033. The next prime is 55251212251063. The reversal of 55251212251054 is 45015221215255.

It is a super-2 number, since 2×552512122510542 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55251212250998 and 55251212251016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104260164 + ... + 104788759.

It is an arithmetic number, because the mean of its divisors is an integer number (5234166959112).

Almost surely, 255251212251054 is an apocalyptic number.

55251212251054 is a deficient number, since it is larger than the sum of its proper divisors (28495459094738).

55251212251054 is a wasteful number, since it uses less digits than its factorization.

55251212251054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209050311.

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 55251212251054 in words is "fifty-five trillion, two hundred fifty-one billion, two hundred twelve million, two hundred fifty-one thousand, fifty-four".

Divisors: 1 2 103 206 1283 2566 132149 264298 209048923 418097846 21532039069 43064078138 268209768209 536419536418 27625606125527 55251212251054