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55055505500050 = 252117313710009091
BaseRepresentation
bin11001000010010100110111…
…10110010010011110010010
321012221020212211122221110011
430201022123312102132102
524204012133402000200
6313032052225225134
714411425515225466
oct1441123366223622
9235836784587404
1055055505500050
11165a69aa619340
1262121614921aa
1324949340451a3
14d849b496a4a6
156571c02305ba
hex32129bd92792

55055505500050 has 96 divisors (see below), whose sum is σ = 114069537814464. Its totient is φ = 19601801856000.

The previous prime is 55055505499999. The next prime is 55055505500081. The reversal of 55055505500050 is 5000550555055.

It is a super-2 number, since 2×550555055000502 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55055505499976 and 55055505500012.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 496005 + ... + 10505095.

It is an arithmetic number, because the mean of its divisors is an integer number (1188224352234).

Almost surely, 255055505500050 is an apocalyptic number.

55055505500050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55055505500050 is an abundant number, since it is smaller than the sum of its proper divisors (59014032314414).

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

55055505500050 is a wasteful number, since it uses less digits than its factorization.

55055505500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009324 (or 10009319 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 40.

It can be divided in two parts, 55055505 and 500050, that added together give a palindrome (55555555).

The spelling of 55055505500050 in words is "fifty-five trillion, fifty-five billion, five hundred five million, five hundred thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 73 110 137 146 274 275 365 550 685 730 803 1370 1507 1606 1825 3014 3425 3650 4015 6850 7535 8030 10001 15070 20002 20075 37675 40150 50005 75350 100010 110011 220022 250025 500050 550055 1100110 2750275 5500550 10009091 20018182 50045455 100090910 110100001 220200002 250227275 500454550 550500005 730663643 1101000010 1371245467 1461327286 2742490934 2752500025 3653318215 5505000050 6856227335 7306636430 8037300073 13712454670 15083700137 16074600146 18266591075 30167400274 34281136675 36533182150 40186500365 68562273350 75418500685 80373000730 100100919091 150837001370 200201838182 200932501825 377092503425 401865003650 500504595455 754185006850 1001009190910 1101110110001 2202220220002 2502522977275 5005045954550 5505550550005 11011101100010 27527752750025 55055505500050