Search a number
-
+
55050312011 = 456712053933
BaseRepresentation
bin110011010001010000…
…010001100101001011
312021002112212121021212
4303101100101211023
51400220334441021
641142331123335
73656124634322
oct632120214513
9167075777255
1055050312011
112138a514232
12a8042a354b
135264165a26
14294336b0b9
151672e3885b
hexcd141194b

55050312011 has 4 divisors (see below), whose sum is σ = 55062370512. Its totient is φ = 55038253512.

The previous prime is 55050312007. The next prime is 55050312041. The reversal of 55050312011 is 11021305055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11021305055 = 52204261011.

It is a cyclic number.

It is not a de Polignac number, because 55050312011 - 22 = 55050312007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55050312001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6022400 + ... + 6031533.

It is an arithmetic number, because the mean of its divisors is an integer number (13765592628).

Almost surely, 255050312011 is an apocalyptic number.

55050312011 is a deficient number, since it is larger than the sum of its proper divisors (12058501).

55050312011 is a wasteful number, since it uses less digits than its factorization.

55050312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12058500.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 55050312011 its reverse (11021305055), we get a palindrome (66071617066).

The spelling of 55050312011 in words is "fifty-five billion, fifty million, three hundred twelve thousand, eleven".

Divisors: 1 4567 12053933 55050312011