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55050131533 = 187352275623
BaseRepresentation
bin110011010001001111…
…100101100001001101
312021002112112102201111
4303101033211201031
51400220313202113
641142323212021
73656123253205
oct632117454115
9167075472644
1055050131533
112138a400681
12a804217011
135264101837
142943321405
151672e0013d
hexcd13e584d

55050131533 has 8 divisors (see below), whose sum is σ = 55099857728. Its totient is φ = 55000430784.

The previous prime is 55050131519. The next prime is 55050131537. The reversal of 55050131533 is 33513105055.

It is a happy number.

55050131533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55050131533 - 29 = 55050131021 is a prime.

It is a super-3 number, since 3×550501315333 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55050131495 and 55050131504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050131537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9787360 + ... + 9792982.

It is an arithmetic number, because the mean of its divisors is an integer number (6887482216).

Almost surely, 255050131533 is an apocalyptic number.

It is an amenable number.

55050131533 is a deficient number, since it is larger than the sum of its proper divisors (49726195).

55050131533 is a wasteful number, since it uses less digits than its factorization.

55050131533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12723.

The product of its (nonzero) digits is 16875, while the sum is 31.

Adding to 55050131533 its reverse (33513105055), we get a palindrome (88563236588).

The spelling of 55050131533 in words is "fifty-five billion, fifty million, one hundred thirty-one thousand, five hundred thirty-three".

Divisors: 1 1873 5227 5623 9790171 10531879 29391421 55050131533