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55250184133 = 59279321779
BaseRepresentation
bin110011011101001010…
…101110011111000101
312021121110222011022001
4303131022232133011
51401123021343013
641214231105301
73664102550014
oct633512563705
9167543864261
1055250184133
112148231a101
12a85b212231
1352966a6a61
142961b18a7b
151685769ddd
hexcdd2ae7c5

55250184133 has 4 divisors (see below), whose sum is σ = 55259511840. Its totient is φ = 55240856428.

The previous prime is 55250184089. The next prime is 55250184149. The reversal of 55250184133 is 33148105255.

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: 33148105255 = 56629621051.

It is a cyclic number.

It is not a de Polignac number, because 55250184133 - 213 = 55250175941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55250184092 and 55250184101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250184173) 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, 4654963 + ... + 4666816.

It is an arithmetic number, because the mean of its divisors is an integer number (13814877960).

Almost surely, 255250184133 is an apocalyptic number.

It is an amenable number.

55250184133 is a deficient number, since it is larger than the sum of its proper divisors (9327707).

55250184133 is an equidigital number, since it uses as much as digits as its factorization.

55250184133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9327706.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 55250184133 its reverse (33148105255), we get a palindrome (88398289388).

The spelling of 55250184133 in words is "fifty-five billion, two hundred fifty million, one hundred eighty-four thousand, one hundred thirty-three".

Divisors: 1 5927 9321779 55250184133