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55554053551 = 172296628571
BaseRepresentation
bin110011101111010001…
…111001010110101111
312022101122202022202221
4303233101321112233
51402233314203201
641304324100211
74004452443463
oct635721712657
9168348668687
1055554053551
11216188a6757
12a924b34667
13531462ab49
1429902184a3
1516a22904a1
hexcef4795af

55554053551 has 12 divisors (see below), whose sum is σ = 61049148120. Its totient is φ = 50483189120.

The previous prime is 55554053521. The next prime is 55554053563. The reversal of 55554053551 is 15535045555.

It is not a de Polignac number, because 55554053551 - 225 = 55520499119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55554053498 and 55554053507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55554053521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3305905 + ... + 3322666.

It is an arithmetic number, because the mean of its divisors is an integer number (5087429010).

Almost surely, 255554053551 is an apocalyptic number.

55554053551 is a deficient number, since it is larger than the sum of its proper divisors (5495094569).

55554053551 is a wasteful number, since it uses less digits than its factorization.

55554053551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628634 (or 6628617 counting only the distinct ones).

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 55554053551 in words is "fifty-five billion, five hundred fifty-four million, fifty-three thousand, five hundred fifty-one".

Divisors: 1 17 29 289 493 8381 6628571 112685707 192228559 1915657019 3267885503 55554053551