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55275670 = 25172367211
BaseRepresentation
bin1101001011011…
…1000010010110
310212000021222001
43102313002112
5103122310140
65252425514
71240556362
oct322670226
9125007861
1055275670
112922447a
121661829a
13b5b47c8
1474ac2a2
154cbce9a
hex34b7096

55275670 has 64 divisors (see below), whose sum is σ = 112098816. Its totient is φ = 19514880.

The previous prime is 55275659. The next prime is 55275677. The reversal of 55275670 is 7657255.

55275670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55275677) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 261865 + ... + 262075.

It is an arithmetic number, because the mean of its divisors is an integer number (1751544).

Almost surely, 255275670 is an apocalyptic number.

55275670 is an abundant number, since it is smaller than the sum of its proper divisors (56823146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55275670 is a wasteful number, since it uses less digits than its factorization.

55275670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 55275670 is about 7434.7609241992. The cubic root of 55275670 is about 380.9295571321.

It can be divided in two parts, 552756 and 70, that added together give a triangular number (552826 = T1051).

The spelling of 55275670 in words is "fifty-five million, two hundred seventy-five thousand, six hundred seventy".

Divisors: 1 2 5 10 17 23 34 46 67 85 115 134 170 211 230 335 391 422 670 782 1055 1139 1541 1955 2110 2278 3082 3587 3910 4853 5695 7174 7705 9706 11390 14137 15410 17935 24265 26197 28274 35870 48530 52394 70685 82501 130985 141370 165002 240329 261970 325151 412505 480658 650302 825010 1201645 1625755 2403290 3251510 5527567 11055134 27637835 55275670