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55305331205 = 559730725657
BaseRepresentation
bin110011100000011101…
…000110001000000101
312021202022201220212012
4303200131012020011
51401231131044310
641223521104005
73665342362445
oct634035061005
9167668656765
1055305331205
11215004659a3
12a875788005
1352a4c44b67
142969192125
15168a50ec05
hexce0746205

55305331205 has 16 divisors (see below), whose sum is σ = 67503119040. Its totient is φ = 43486714752.

The previous prime is 55305331201. The next prime is 55305331219. The reversal of 55305331205 is 50213350355.

It is a cyclic number.

It is not a de Polignac number, because 55305331205 - 22 = 55305331201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305331201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142737 + ... + 2168393.

It is an arithmetic number, because the mean of its divisors is an integer number (4218944940).

Almost surely, 255305331205 is an apocalyptic number.

It is an amenable number.

55305331205 is a deficient number, since it is larger than the sum of its proper divisors (12197787835).

55305331205 is a wasteful number, since it uses less digits than its factorization.

55305331205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33028.

The product of its (nonzero) digits is 33750, while the sum is 32.

The spelling of 55305331205 in words is "fifty-five billion, three hundred five million, three hundred thirty-one thousand, two hundred five".

Divisors: 1 5 59 295 7307 25657 36535 128285 431113 1513763 2155565 7568815 187475699 937378495 11061066241 55305331205