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55286101 = 134252777
BaseRepresentation
bin1101001011100…
…1100101010101
310212000211021101
43102321211111
5103123123401
65252550101
71240631653
oct322714525
9125024241
1055286101
11292312a2
1216622331
13b5b9490
1474b1dd3
154cc1101
hex34b9955

55286101 has 4 divisors (see below), whose sum is σ = 59538892. Its totient is φ = 51033312.

The previous prime is 55286071. The next prime is 55286107. The reversal of 55286101 is 10168255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6300100 + 48986001 = 2510^2 + 6999^2 .

It is a cyclic number.

It is not a de Polignac number, because 55286101 - 225 = 21731669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55286101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55286107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126376 + ... + 2126401.

It is an arithmetic number, because the mean of its divisors is an integer number (14884723).

Almost surely, 255286101 is an apocalyptic number.

It is an amenable number.

55286101 is a deficient number, since it is larger than the sum of its proper divisors (4252791).

55286101 is a wasteful number, since it uses less digits than its factorization.

55286101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252790.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 55286101 is about 7435.4623931535. The cubic root of 55286101 is about 380.9535171992.

The spelling of 55286101 in words is "fifty-five million, two hundred eighty-six thousand, one hundred one".

Divisors: 1 13 4252777 55286101