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550213755 = 3571317131181
BaseRepresentation
bin100000110010111…
…001100001111011
31102100022202101020
4200302321201323
52111323320010
6130332553523
716430511510
oct4062714173
91370282336
10550213755
11262643813
121343228a3
1389cb6890
1453107307
1533486470
hex20cb987b

550213755 has 128 divisors (see below), whose sum is σ = 1162377216. Its totient is φ = 215654400.

The previous prime is 550213747. The next prime is 550213757. The reversal of 550213755 is 557312055.

550213755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550213755 - 23 = 550213747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550213757) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3039765 + ... + 3039945.

It is an arithmetic number, because the mean of its divisors is an integer number (9081072).

Almost surely, 2550213755 is an apocalyptic number.

550213755 is an abundant number, since it is smaller than the sum of its proper divisors (612163461).

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

550213755 is a wasteful number, since it uses less digits than its factorization.

550213755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 550213755 is about 23456.6356283249. The cubic root of 550213755 is about 819.4273986823.

The spelling of 550213755 in words is "five hundred fifty million, two hundred thirteen thousand, seven hundred fifty-five".

Divisors: 1 3 5 7 13 15 17 21 35 39 51 65 85 91 105 119 131 181 195 221 255 273 357 393 455 543 595 655 663 905 917 1105 1267 1365 1547 1703 1785 1965 2227 2353 2715 2751 3077 3315 3801 4585 4641 5109 6335 6681 7059 7735 8515 9231 11135 11765 11921 13755 15385 15589 16471 19005 21539 23205 23711 25545 28951 33405 35295 35763 40001 46155 46767 49413 59605 64617 71133 77945 82355 86853 107695 118555 120003 144755 165977 178815 200005 202657 233835 247065 280007 308243 323085 355665 403087 434265 497931 600015 607971 829885 840021 924729 1013285 1209261 1400035 1541215 2015435 2157701 2489655 2821609 3039855 4200105 4623645 5240131 6046305 6473103 8464827 10788505 14108045 15720393 26200655 32365515 36680917 42324135 78601965 110042751 183404585 550213755