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54255207665 = 513978065047
BaseRepresentation
bin110010100001110111…
…001100010011110001
312012001010202010011202
4302201313030103301
51342103313121130
640531405220545
73630331441001
oct624167142361
9165033663152
1054255207665
11210117175aa
12a621b61755
135168508299
1428a9918001
15162822c145
hexca1dcc4f1

54255207665 has 8 divisors (see below), whose sum is σ = 65574640320. Its totient is φ = 43091905392.

The previous prime is 54255207623. The next prime is 54255207737. The reversal of 54255207665 is 56670255245.

54255207665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 54255207665 - 228 = 53986772209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39031829 + ... + 39033218.

It is an arithmetic number, because the mean of its divisors is an integer number (8196830040).

Almost surely, 254255207665 is an apocalyptic number.

It is an amenable number.

54255207665 is a deficient number, since it is larger than the sum of its proper divisors (11319432655).

54255207665 is a wasteful number, since it uses less digits than its factorization.

54255207665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78065191.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 54255207665 in words is "fifty-four billion, two hundred fifty-five million, two hundred seven thousand, six hundred sixty-five".

Divisors: 1 5 139 695 78065047 390325235 10851041533 54255207665