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55210325689 = 17231139771279
BaseRepresentation
bin110011011010110010…
…101011011010111001
312021111200222010210101
4303122302223122321
51401032320410224
641210244515401
73663110011441
oct633262533271
9167450863711
1055210325689
1121461875942
12a8499abb61
13528b35c78c
14295a701121
151681ee5044
hexcdacab6b9

55210325689 has 32 divisors (see below), whose sum is σ = 61650616320. Its totient is φ = 49174659072.

The previous prime is 55210325683. The next prime is 55210325711. The reversal of 55210325689 is 98652301255.

It is a cyclic number.

It is not a de Polignac number, because 55210325689 - 27 = 55210325561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55210325683) 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, 43166152 + ... + 43167430.

It is an arithmetic number, because the mean of its divisors is an integer number (1926581760).

Almost surely, 255210325689 is an apocalyptic number.

It is an amenable number.

55210325689 is a deficient number, since it is larger than the sum of its proper divisors (6440290631).

55210325689 is a wasteful number, since it uses less digits than its factorization.

55210325689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 55210325689 in words is "fifty-five billion, two hundred ten million, three hundred twenty-five thousand, six hundred eighty-nine".

Divisors: 1 17 23 113 391 977 1279 1921 2599 16609 21743 22471 29417 44183 110401 144527 382007 500089 1249583 1876817 2456959 2539223 3324121 21242911 28740409 43166791 56510057 141202879 488586953 2400448943 3247666217 55210325689