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55250023312 = 2411313920587
BaseRepresentation
bin110011011101001010…
…000111001110010000
312021121110122222200201
4303131022013032100
51401123001221222
641214223424544
73664101310111
oct633512071620
9167543588621
1055250023312
112148221a2a0
12a85b155154
13529664b7b3
142961ab6208
151685737427
hexcdd287390

55250023312 has 20 divisors (see below), whose sum is σ = 116778458736. Its totient is φ = 25113646880.

The previous prime is 55250023303. The next prime is 55250023313. The reversal of 55250023312 is 21332005255.

It is not an unprimeable number, because it can be changed into a prime (55250023313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156960118 + ... + 156960469.

Almost surely, 255250023312 is an apocalyptic number.

It is an amenable number.

55250023312 is an abundant number, since it is smaller than the sum of its proper divisors (61528435424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55250023312 is a wasteful number, since it uses less digits than its factorization.

55250023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313920606 (or 313920600 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 55250023312 its reverse (21332005255), we get a palindrome (76582028567).

The spelling of 55250023312 in words is "fifty-five billion, two hundred fifty million, twenty-three thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 44 88 176 313920587 627841174 1255682348 2511364696 3453126457 5022729392 6906252914 13812505828 27625011656 55250023312