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55227705 = 3513713989
BaseRepresentation
bin1101001010101…
…1010100111001
310211220212011120
43102223110321
5103114241310
65251415453
71240266501
oct322532471
9124825146
1055227705
11291a1435
12165b4589
13b598a20
147498a01
154cadb70
hex34ab539

55227705 has 32 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 26799360.

The previous prime is 55227677. The next prime is 55227707. The reversal of 55227705 is 50772255.

It is not a de Polignac number, because 55227705 - 217 = 55096633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55227707) 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, 11851 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 255227705 is an apocalyptic number.

It is an amenable number.

55227705 is a deficient number, since it is larger than the sum of its proper divisors (41298375).

55227705 is a wasteful number, since it uses less digits than its factorization.

55227705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 55227705 is about 7431.5344983388. The cubic root of 55227705 is about 380.8193424350.

The spelling of 55227705 in words is "fifty-five million, two hundred twenty-seven thousand, seven hundred five".

Divisors: 1 3 5 13 15 39 65 71 195 213 355 923 1065 2769 3989 4615 11967 13845 19945 51857 59835 155571 259285 283219 777855 849657 1416095 3681847 4248285 11045541 18409235 55227705