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55175164 = 221119312129
BaseRepresentation
bin1101001001111…
…0011111111100
310211211012002121
43102132133330
5103111101124
65250332324
71236660352
oct322363774
9124735077
1055175164
1129165a10
121658a0a4
13b57ab35
1474837d2
154c9d2e4
hex349e7fc

55175164 has 48 divisors (see below), whose sum is σ = 114508800. Its totient is φ = 22982400.

The previous prime is 55175117. The next prime is 55175167. The reversal of 55175164 is 46157155.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55175167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24852 + ... + 26980.

It is an arithmetic number, because the mean of its divisors is an integer number (2385600).

Almost surely, 255175164 is an apocalyptic number.

It is an amenable number.

55175164 is an abundant number, since it is smaller than the sum of its proper divisors (59333636).

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

55175164 is a wasteful number, since it uses less digits than its factorization.

55175164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2192 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 55175164 is about 7427.9986537425. The cubic root of 55175164 is about 380.6985396754.

Subtracting from 55175164 its reverse (46157155), we obtain a square (9018009 = 30032).

The spelling of 55175164 in words is "fifty-five million, one hundred seventy-five thousand, one hundred sixty-four".

Divisors: 1 2 4 11 19 22 31 38 44 62 76 124 209 341 418 589 682 836 1178 1364 2129 2356 4258 6479 8516 12958 23419 25916 40451 46838 65999 80902 93676 131998 161804 263996 444961 725989 889922 1253981 1451978 1779844 2507962 2903956 5015924 13793791 27587582 55175164