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55550027525 = 5217312843937
BaseRepresentation
bin110011101111000010…
…100010011100000101
312022101101011210002212
4303233002202130011
51402231301340100
641304101513205
74004403305006
oct635702423405
9168341153085
1055550027525
11216165a6963
12a923712805
13531384b495
14298d88b1ad
1516a1c47635
hexcef0a2705

55550027525 has 12 divisors (see below), whose sum is σ = 69280201572. Its totient is φ = 44183139840.

The previous prime is 55550027503. The next prime is 55550027551. The reversal of 55550027525 is 52572005555.

It can be written as a sum of positive squares in 6 ways, for example, as 7561867681 + 47988159844 = 86959^2 + 219062^2 .

It is not a de Polignac number, because 55550027525 - 210 = 55550026501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6417644 + ... + 6426293.

It is an arithmetic number, because the mean of its divisors is an integer number (5773350131).

Almost surely, 255550027525 is an apocalyptic number.

It is an amenable number.

55550027525 is a deficient number, since it is larger than the sum of its proper divisors (13730174047).

55550027525 is a wasteful number, since it uses less digits than its factorization.

55550027525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844120 (or 12844115 counting only the distinct ones).

The product of its (nonzero) digits is 437500, while the sum is 41.

The spelling of 55550027525 in words is "fifty-five billion, five hundred fifty million, twenty-seven thousand, five hundred twenty-five".

Divisors: 1 5 25 173 865 4325 12843937 64219685 321098425 2222001101 11110005505 55550027525