Search a number
-
+
55179594445 = 515770292477
BaseRepresentation
bin110011011000111101…
…011100101011001101
312021102120010211110011
4303120331130223031
51401001434010240
641203230113221
73662254546123
oct633075345315
9167376124404
1055179594445
1121446496018
12a83b64b811
135284b8ca01
1429565c1913
15167e4746ea
hexcd8f5cacd

55179594445 has 8 divisors (see below), whose sum is σ = 66637269144. Its totient is φ = 43862505024.

The previous prime is 55179594433. The next prime is 55179594487. The reversal of 55179594445 is 54449597155.

It can be written as a sum of positive squares in 4 ways, for example, as 155102116 + 55024492329 = 12454^2 + 234573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55179594445 - 29 = 55179593933 is a prime.

It is a super-2 number, since 2×551795944452 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55179594445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35145454 + ... + 35147023.

It is an arithmetic number, because the mean of its divisors is an integer number (8329658643).

Almost surely, 255179594445 is an apocalyptic number.

It is an amenable number.

55179594445 is a deficient number, since it is larger than the sum of its proper divisors (11457674699).

55179594445 is a wasteful number, since it uses less digits than its factorization.

55179594445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70292639.

The product of its digits is 22680000, while the sum is 58.

The spelling of 55179594445 in words is "fifty-five billion, one hundred seventy-nine million, five hundred ninety-four thousand, four hundred forty-five".

Divisors: 1 5 157 785 70292477 351462385 11035918889 55179594445