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55280503055 = 5611578091427
BaseRepresentation
bin110011011110111110…
…011000100100001111
312021200121000112001002
4303132332120210033
51401203302044210
641221233010515
73664621344251
oct633676304417
9167617015032
1055280503055
1121498448168
12a8693b3a3b
13529ca60c4b
142965b6bcd1
1516882584a5
hexcdef9890f

55280503055 has 32 divisors (see below), whose sum is σ = 67985023680. Its totient is φ = 43138667520.

The previous prime is 55280503051. The next prime is 55280503067. The reversal of 55280503055 is 55030508255.

It is not a de Polignac number, because 55280503055 - 22 = 55280503051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55280503051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38738252 + ... + 38739678.

It is an arithmetic number, because the mean of its divisors is an integer number (2124531990).

Almost surely, 255280503055 is an apocalyptic number.

55280503055 is a deficient number, since it is larger than the sum of its proper divisors (12704520625).

55280503055 is a wasteful number, since it uses less digits than its factorization.

55280503055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 55280503055 in words is "fifty-five billion, two hundred eighty million, five hundred three thousand, fifty-five".

Divisors: 1 5 61 157 305 785 809 1427 4045 7135 9577 47885 49349 87047 127013 224039 246745 435235 635065 1120195 1154443 5772215 7747793 13666379 38738965 68331895 70421023 181247551 352105115 906237755 11056100611 55280503055