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55027704258 = 232552912
BaseRepresentation
bin110011001111111010…
…000010000111000010
312021000222100000021200
4303033322002013002
51400144043014013
641140202402030
73655431524442
oct631772020702
9167028300250
1055027704258
112137878273a
12a7b8800316
13525c57b667
142940364122
151670e6ee73
hexccfe821c2

55027704258 has 18 divisors (see below), whose sum is σ = 119228848947. Its totient is φ = 18342236340.

The previous prime is 55027704257. The next prime is 55027704269. The reversal of 55027704258 is 85240772055.

55027704258 is a `hidden beast` number, since 550 + 2 + 7 + 7 + 0 + 42 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27513852129 + 27513852129 = 165873^2 + 165873^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=165873.

It is a super-2 number, since 2×550277042582 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55027704257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 967593 + ... + 1022883.

Almost surely, 255027704258 is an apocalyptic number.

55027704258 is an abundant number, since it is smaller than the sum of its proper divisors (64201144689).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55027704258 is an frugal number, since it uses more digits than its factorization.

55027704258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110590 (or 55296 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The spelling of 55027704258 in words is "fifty-five billion, twenty-seven million, seven hundred four thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 9 18 55291 110582 165873 331746 497619 995238 3057094681 6114189362 9171284043 18342568086 27513852129 55027704258