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55061875 = 54118009
BaseRepresentation
bin1101001000001…
…0110101110011
310211121102200201
43102002311303
5103043440000
65244100031
71236006151
oct322026563
9124542621
1055061875
1129098890
1216534617
13b53b3bb
1474543d1
154c7996a
hex3482d73

55061875 has 20 divisors (see below), whose sum is σ = 75069720. Its totient is φ = 40040000.

The previous prime is 55061869. The next prime is 55061899. The reversal of 55061875 is 57816055.

55061875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55061875 - 211 = 55059827 is a prime.

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 19 ways as a sum of consecutive naturals, for example, 2871 + ... + 10879.

It is an arithmetic number, because the mean of its divisors is an integer number (3753486).

Almost surely, 255061875 is an apocalyptic number.

55061875 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55061875 is a deficient number, since it is larger than the sum of its proper divisors (20007845).

55061875 is an equidigital number, since it uses as much as digits as its factorization.

55061875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040 (or 8025 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 55061875 is about 7420.3689261384. The cubic root of 55061875 is about 380.4378033478.

It can be divided in two parts, 5506 and 1875, that added together give a triangular number (7381 = T121).

The spelling of 55061875 in words is "fifty-five million, sixty-one thousand, eight hundred seventy-five".

Divisors: 1 5 11 25 55 125 275 625 1375 6875 8009 40045 88099 200225 440495 1001125 2202475 5005625 11012375 55061875