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55127911 = 192901469
BaseRepresentation
bin1101001001001…
…0111101100111
310211201210021111
43102102331213
5103103043121
65245325451
71236402526
oct322227547
9124653244
1055127911
1129133463
1216566887
13b562487
1474704bd
154c8e2e1
hex3492f67

55127911 has 4 divisors (see below), whose sum is σ = 58029400. Its totient is φ = 52226424.

The previous prime is 55127909. The next prime is 55127939. The reversal of 55127911 is 11972155.

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

It is a cyclic number.

It is not a de Polignac number, because 55127911 - 21 = 55127909 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 (55127971) 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, 1450716 + ... + 1450753.

It is an arithmetic number, because the mean of its divisors is an integer number (14507350).

Almost surely, 255127911 is an apocalyptic number.

55127911 is a deficient number, since it is larger than the sum of its proper divisors (2901489).

55127911 is a wasteful number, since it uses less digits than its factorization.

55127911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901488.

The product of its digits is 3150, while the sum is 31.

The square root of 55127911 is about 7424.8172368079. The cubic root of 55127911 is about 380.5898296167.

The spelling of 55127911 in words is "fifty-five million, one hundred twenty-seven thousand, nine hundred eleven".

Divisors: 1 19 2901469 55127911