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55550505 = 3537101991
BaseRepresentation
bin1101001111101…
…0001000101001
310212112020222010
43103322020221
5103210104010
65302350133
71243112553
oct323721051
9125466863
1055550505
11293a1a0a
121672b349
13b67c92a
1475404d3
154d24620
hex34fa229

55550505 has 32 divisors (see below), whose sum is σ = 92279808. Its totient is φ = 28512000.

The previous prime is 55550503. The next prime is 55550527. The reversal of 55550505 is 50505555.

55550505 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 55550505 - 21 = 55550503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55550501) 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, 55560 + ... + 56550.

It is an arithmetic number, because the mean of its divisors is an integer number (2883744).

Almost surely, 255550505 is an apocalyptic number.

It is an amenable number.

55550505 is a deficient number, since it is larger than the sum of its proper divisors (36729303).

55550505 is a wasteful number, since it uses less digits than its factorization.

55550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 15625, while the sum is 30.

The square root of 55550505 is about 7453.2211157324. The cubic root of 55550505 is about 381.5598509483.

The spelling of 55550505 in words is "fifty-five million, five hundred fifty thousand, five hundred five".

Divisors: 1 3 5 15 37 101 111 185 303 505 555 991 1515 2973 3737 4955 11211 14865 18685 36667 56055 100091 110001 183335 300273 500455 550005 1501365 3703367 11110101 18516835 55550505