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55550505055 = 530113368947
BaseRepresentation
bin110011101111000100…
…010111000001011111
312022101102002001011011
4303233010113001133
51402231412130210
641304120040051
74004410334143
oct635704270137
9168342061134
1055550505055
11216168a2711
12a923903027
135313987946
14298d973223
1516a1cddd8a
hexcef11705f

55550505055 has 8 divisors (see below), whose sum is σ = 66663000432. Its totient is φ = 44438807808.

The previous prime is 55550505041. The next prime is 55550505083. The reversal of 55550505055 is 55050505555.

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 55550505055 - 211 = 55550503007 is a prime.

It is a super-2 number, since 2×555505050552 (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 = 55550504999 and 55550505017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33909 + ... + 335038.

It is an arithmetic number, because the mean of its divisors is an integer number (8332875054).

Almost surely, 255550505055 is an apocalyptic number.

55550505055 is a deficient number, since it is larger than the sum of its proper divisors (11112495377).

55550505055 is a wasteful number, since it uses less digits than its factorization.

55550505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399065.

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

The spelling of 55550505055 in words is "fifty-five billion, five hundred fifty million, five hundred five thousand, fifty-five".

Divisors: 1 5 30113 150565 368947 1844735 11110101011 55550505055