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55050505555 = 529379658659
BaseRepresentation
bin110011010001010001…
…000000110101010011
312021002120020102210011
4303101101000311103
51400220412134210
641142335215351
73656126401513
oct632121006523
9167076212704
1055050505555
112138a636691
12a804377557
135264202b56
1429433bb843
151672e75d8a
hexcd1440d53

55050505555 has 8 divisors (see below), whose sum is σ = 68338558800. Its totient is φ = 42521769696.

The previous prime is 55050505553. The next prime is 55050505621. The reversal of 55050505555 is 55550505055.

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 55050505555 - 21 = 55050505553 is a prime.

It is a super-2 number, since 2×550505055552 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55050505553) 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, 189829185 + ... + 189829474.

It is an arithmetic number, because the mean of its divisors is an integer number (8542319850).

Almost surely, 255050505555 is an apocalyptic number.

55050505555 is a deficient number, since it is larger than the sum of its proper divisors (13288053245).

55050505555 is a wasteful number, since it uses less digits than its factorization.

55050505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379658693.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55050505555 in words is "fifty-five billion, fifty million, five hundred five thousand, five hundred fifty-five".

Divisors: 1 5 29 145 379658659 1898293295 11010101111 55050505555