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55127750 = 253220511
BaseRepresentation
bin1101001001001…
…0111011000110
310211201210001112
43102102323012
5103103042000
65245325022
71236402206
oct322227306
9124653045
1055127750
1129133327
1216566772
13b562392
147470406
154c8e235
hex3492ec6

55127750 has 16 divisors (see below), whose sum is σ = 103199616. Its totient is φ = 22051000.

The previous prime is 55127747. The next prime is 55127773. The reversal of 55127750 is 5772155.

55127750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110006 + ... + 110505.

It is an arithmetic number, because the mean of its divisors is an integer number (6449976).

Almost surely, 255127750 is an apocalyptic number.

55127750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55127750 is a deficient number, since it is larger than the sum of its proper divisors (48071866).

55127750 is a wasteful number, since it uses less digits than its factorization.

55127750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220528 (or 220518 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 55127750 is about 7424.8063947823. The cubic root of 55127750 is about 380.5894591146.

The spelling of 55127750 in words is "fifty-five million, one hundred twenty-seven thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 220511 441022 1102555 2205110 5512775 11025550 27563875 55127750