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50055550553 = 431164082571
BaseRepresentation
bin101110100111100010…
…110001011001011001
311210012110100102122202
4232213202301121121
51310003210104203
634554544055545
73421265105501
oct564742613131
9153173312582
1050055550553
111a257064aa8
12984b6045b5
13494941c688
1425cbc70a01
15147e6b9388
hexba78b1659

50055550553 has 4 divisors (see below), whose sum is σ = 51219633168. Its totient is φ = 48891467940.

The previous prime is 50055550547. The next prime is 50055550619. The reversal of 50055550553 is 35505555005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35505555005 = 57101111001.

It is a cyclic number.

It is not a de Polignac number, because 50055550553 - 214 = 50055534169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50055552553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582041243 + ... + 582041328.

It is an arithmetic number, because the mean of its divisors is an integer number (12804908292).

Almost surely, 250055550553 is an apocalyptic number.

It is an amenable number.

50055550553 is a deficient number, since it is larger than the sum of its proper divisors (1164082615).

50055550553 is a wasteful number, since it uses less digits than its factorization.

50055550553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164082614.

The product of its (nonzero) digits is 234375, while the sum is 38.

The spelling of 50055550553 in words is "fifty billion, fifty-five million, five hundred fifty thousand, five hundred fifty-three".

Divisors: 1 43 1164082571 50055550553