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55505505049 = 193407857453
BaseRepresentation
bin110011101100011000…
…101100101100011001
312022021021101210202021
4303230120230230121
51402133402130144
641255431334441
74003323002611
oct635430545431
9168237353667
1055505505049
11215a3457525
12a910821421
135307560317
1429879bba41
15169cda0884
hexcec62cb19

55505505049 has 8 divisors (see below), whose sum is σ = 58444064640. Its totient is φ = 52568667216.

The previous prime is 55505505047. The next prime is 55505505061. The reversal of 55505505049 is 94050550555.

55505505049 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 55505505049 - 21 = 55505505047 is a prime.

It is a super-2 number, since 2×555055050492 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55505504996 and 55505505014.

It is not an unprimeable number, because it can be changed into a prime (55505505047) 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, 363994 + ... + 493459.

It is an arithmetic number, because the mean of its divisors is an integer number (7305508080).

Almost surely, 255505505049 is an apocalyptic number.

It is an amenable number.

55505505049 is a deficient number, since it is larger than the sum of its proper divisors (2938559591).

55505505049 is a wasteful number, since it uses less digits than its factorization.

55505505049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860879.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 55505505049 in words is "fifty-five billion, five hundred five million, five hundred five thousand, forty-nine".

Divisors: 1 19 3407 64733 857453 16291607 2921342371 55505505049