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55054555 = 512798609
BaseRepresentation
bin1101001000000…
…1000011011011
310211121001122121
43102001003123
5103043221210
65244002111
71235645623
oct322010333
9124531577
1055054555
1129093336
1216530337
13b537c7a
147451883
154c776da
hex34810db

55054555 has 8 divisors (see below), whose sum is σ = 66124800. Its totient is φ = 44004096.

The previous prime is 55054553. The next prime is 55054561. The reversal of 55054555 is 55545055.

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 55054555 - 21 = 55054553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55054555.

It is not an unprimeable number, because it can be changed into a prime (55054553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2091 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (8265600).

Almost surely, 255054555 is an apocalyptic number.

55054555 is a deficient number, since it is larger than the sum of its proper divisors (11070245).

55054555 is a wasteful number, since it uses less digits than its factorization.

55054555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9893.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 55054555 is about 7419.8756728129. The cubic root of 55054555 is about 380.4209439623.

The spelling of 55054555 in words is "fifty-five million, fifty-four thousand, five hundred fifty-five".

Divisors: 1 5 1279 6395 8609 43045 11010911 55054555