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BaseRepresentation
bin11001000001000001001110…
…10111111010010000011001
321012202221222102020212212010
430200200213113322100121
524202243203014102041
6312555304353140133
714405245664252526
oct1440404727722031
9235687872225763
1055010601706521
11165899575a367a
12620550b25a649
132490629049c66
14d82754dc214d
15655e42e97a16
hex3208275fa419

55010601706521 has 32 divisors (see below), whose sum is σ = 77367091161600. Its totient is φ = 34671922024320.

The previous prime is 55010601706513. The next prime is 55010601706661. The reversal of 55010601706521 is 12560710601055.

It is a happy number.

It is not a de Polignac number, because 55010601706521 - 23 = 55010601706513 is a prime.

It is a super-3 number, since 3×550106017065213 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 55010601706521.

It is not an unprimeable number, because it can be changed into a prime (55010601006521) 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, 106999486 + ... + 107512376.

It is an arithmetic number, because the mean of its divisors is an integer number (2417721598800).

Almost surely, 255010601706521 is an apocalyptic number.

It is an amenable number.

55010601706521 is a deficient number, since it is larger than the sum of its proper divisors (22356489455079).

55010601706521 is a wasteful number, since it uses less digits than its factorization.

55010601706521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516789.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 55010601706521 in words is "fifty-five trillion, ten billion, six hundred one million, seven hundred six thousand, five hundred twenty-one".