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55251122542600 = 23521601626327551
BaseRepresentation
bin11001001000000001001111…
…00010000101100000001000
321020121221210201122022122011
430210000213202011200020
524220213244332330400
6313302003145305304
714431522215525055
oct1444004742054010
9236557721568564
1055251122542600
1116671962310756
126244055195234
1324aa20a2ba5ca
14d902508cc02c
1565c31d9d58ba
hex324027885808

55251122542600 has 96 divisors (see below), whose sum is σ = 128564286359040. Its totient is φ = 22082316800000.

The previous prime is 55251122542597. The next prime is 55251122542607. The reversal of 55251122542600 is 624522115255.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (55251122542607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2005398825 + ... + 2005426375.

It is an arithmetic number, because the mean of its divisors is an integer number (1339211316240).

Almost surely, 255251122542600 is an apocalyptic number.

55251122542600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55251122542600 is an abundant number, since it is smaller than the sum of its proper divisors (73313163816440).

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

55251122542600 is a wasteful number, since it uses less digits than its factorization.

55251122542600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35431 (or 35422 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

Adding to 55251122542600 its reverse (624522115255), we get a palindrome (55875644657855).

The spelling of 55251122542600 in words is "fifty-five trillion, two hundred fifty-one billion, one hundred twenty-two million, five hundred forty-two thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1601 3202 6263 6404 8005 12526 12808 16010 25052 27551 31315 32020 40025 50104 55102 62630 64040 80050 110204 125260 137755 156575 160100 220408 250520 275510 313150 320200 551020 626300 688775 1102040 1252600 1377550 2755100 5510200 10027063 20054126 40108252 44109151 50135315 80216504 88218302 100270630 172551913 176436604 200541260 220545755 250676575 345103826 352873208 401082520 441091510 501353150 690207652 862759565 882183020 1002706300 1102728775 1380415304 1725519130 1764366040 2005412600 2205457550 3451038260 4313797825 4410915100 6902076520 8627595650 8821830200 17255191300 34510382600 276255612713 552511225426 1105022450852 1381278063565 2210044901704 2762556127130 5525112254260 6906390317825 11050224508520 13812780635650 27625561271300 55251122542600