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55057255547 = 717462666013
BaseRepresentation
bin110011010001101010…
…110000110001111011
312021010000221101000212
4303101222300301323
51400224124134142
641143140021335
73656240644010
oct632152606173
9167100841025
1055057255547
1121393426a98
12a80669184b
135265727328
142944257707
15167385ad82
hexcd1ab0c7b

55057255547 has 8 divisors (see below), whose sum is σ = 66623906016. Its totient is φ = 44415937152.

The previous prime is 55057255541. The next prime is 55057255549. The reversal of 55057255547 is 74555275055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55057255547 - 226 = 54990146683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55057255495 and 55057255504.

It is not an unprimeable number, because it can be changed into a prime (55057255541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231332888 + ... + 231333125.

It is an arithmetic number, because the mean of its divisors is an integer number (8327988252).

Almost surely, 255057255547 is an apocalyptic number.

55057255547 is a deficient number, since it is larger than the sum of its proper divisors (11566650469).

55057255547 is a wasteful number, since it uses less digits than its factorization.

55057255547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462666037.

The product of its (nonzero) digits is 6125000, while the sum is 50.

The spelling of 55057255547 in words is "fifty-five billion, fifty-seven million, two hundred fifty-five thousand, five hundred forty-seven".

Divisors: 1 7 17 119 462666013 3238662091 7865322221 55057255547