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55675530 = 23251274871
BaseRepresentation
bin1101010001100…
…0101010001010
310212202121110200
43110120222022
5103223104110
65305153030
71244143221
oct324305212
9125677420
1055675530
1129477939
121678b776
13b6c4801
147573cb8
154d4b6c0
hex3518a8a

55675530 has 48 divisors (see below), whose sum is σ = 145926144. Its totient is φ = 14726880.

The previous prime is 55675511. The next prime is 55675547. The reversal of 55675530 is 3557655.

55675530 is a `hidden beast` number, since 5 + 56 + 75 + 530 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8995 + ... + 13865.

It is an arithmetic number, because the mean of its divisors is an integer number (3040128).

Almost surely, 255675530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55675530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72963072).

55675530 is an abundant number, since it is smaller than the sum of its proper divisors (90250614).

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

55675530 is a wasteful number, since it uses less digits than its factorization.

55675530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5008 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 55675530 is about 7461.6037150200. The cubic root of 55675530 is about 381.8458896095.

The spelling of 55675530 in words is "fifty-five million, six hundred seventy-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 127 254 381 635 762 1143 1270 1905 2286 3810 4871 5715 9742 11430 14613 24355 29226 43839 48710 73065 87678 146130 219195 438390 618617 1237234 1855851 3093085 3711702 5567553 6186170 9279255 11135106 18558510 27837765 55675530