Search a number
55005584 = 243437849
BaseRepresentation
bin1101000111010…
…1000110010000
310211111120110212
43101311012100
5103040134314
65242543252
71235353064
oct321650620
9124446425
1055005584
112905a567
1216507b28
13b51b8aa
14743baa4
154c67e3e
hex3475190

55005584 has 10 divisors (see below), whose sum is σ = 106573350. Its totient is φ = 27502784.

The previous prime is 55005583. The next prime is 55005623. The reversal of 55005584 is 48550055.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 5161984 = 7060^2 + 2272^2 .

It is a super-2 number, since 2×550055842 = 6051228542362112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55005584.

It is not an unprimeable number, because it can be changed into a prime (55005583) by changing a digit.

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 as a sum of consecutive naturals, namely, 1718909 + ... + 1718940.

It is an arithmetic number, because the mean of its divisors is an integer number (10657335).

Almost surely, 255005584 is an apocalyptic number.

It is an amenable number.

55005584 is a deficient number, since it is larger than the sum of its proper divisors (51567766).

55005584 is a wasteful number, since it uses less digits than its factorization.

55005584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437857 (or 3437851 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 55005584 is about 7416.5749507438. The cubic root of 55005584 is about 380.3081157537.

The spelling of 55005584 in words is "fifty-five million, five thousand, five hundred eighty-four".