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55005105061 = 233489768531
BaseRepresentation
bin110011001110100011…
…110100101110100101
312020222101210212000101
4303032203310232211
51400122301330221
641134034144101
73655035451534
oct631643645645
9166871725011
1055005105061
1121366a47615
12a7b1122031
13525799815a
14293b36031b
15166dea8d91
hexcce8f4ba5

55005105061 has 8 divisors (see below), whose sum is σ = 57399113664. Its totient is φ = 52611303360.

The previous prime is 55005105053. The next prime is 55005105073. The reversal of 55005105061 is 16050150055.

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 55005105061 - 23 = 55005105053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005106061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768366 + ... + 836896.

It is an arithmetic number, because the mean of its divisors is an integer number (7174889208).

Almost surely, 255005105061 is an apocalyptic number.

It is an amenable number.

55005105061 is a deficient number, since it is larger than the sum of its proper divisors (2394008603).

55005105061 is a wasteful number, since it uses less digits than its factorization.

55005105061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103451.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 55005105061 in words is "fifty-five billion, five million, one hundred five thousand, sixty-one".

Divisors: 1 23 34897 68531 802631 1576213 2391526307 55005105061