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55271608 = 23721941181
BaseRepresentation
bin1101001011011…
…0000010111000
310212000002101121
43102312002320
5103122142413
65252355024
71240541500
oct322660270
9125002347
1055271608
1129221417
1216615a74
13b5b29c2
1474aaa00
154cbbb8d
hex34b60b8

55271608 has 96 divisors (see below), whose sum is σ = 130712400. Its totient is φ = 21772800.

The previous prime is 55271603. The next prime is 55271621. The reversal of 55271608 is 80617255.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55271603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305278 + ... + 305458.

Almost surely, 255271608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55271608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65356200).

55271608 is an abundant number, since it is smaller than the sum of its proper divisors (75440792).

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

55271608 is a wasteful number, since it uses less digits than its factorization.

55271608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 55271608 is about 7434.4877429450. The cubic root of 55271608 is about 380.9202258792.

The spelling of 55271608 in words is "fifty-five million, two hundred seventy-one thousand, six hundred eight".

Divisors: 1 2 4 7 8 14 19 28 38 41 49 56 76 82 98 133 152 164 181 196 266 287 328 362 392 532 574 724 779 931 1064 1148 1267 1448 1558 1862 2009 2296 2534 3116 3439 3724 4018 5068 5453 6232 6878 7421 7448 8036 8869 10136 10906 13756 14842 16072 17738 21812 24073 27512 29684 35476 38171 43624 48146 51947 59368 70952 76342 96292 103894 140999 152684 168511 192584 207788 281998 305368 337022 363629 415576 563996 674044 727258 986993 1127992 1348088 1454516 1973986 2909032 3947972 6908951 7895944 13817902 27635804 55271608