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55550050560 = 283352297019
BaseRepresentation
bin110011101111000010…
…101000000100000000
312022101101012221201000
4303233002220010000
51402231303104220
641304102212000
74004403432114
oct635702500400
9168341187630
1055550050560
11216166121a4
12a923724000
135313858b04
14298d895744
1516a1c4e390
hexcef0a8100

55550050560 has 288 divisors, whose sum is σ = 198014544000. Its totient is φ = 14746558464.

The previous prime is 55550050553. The next prime is 55550050597. The reversal of 55550050560 is 6505005555.

55550050560 is a `hidden beast` number, since 5 + 5 + 550 + 0 + 50 + 56 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7910731 + ... + 7917749.

It is an arithmetic number, because the mean of its divisors is an integer number (687550500).

Almost surely, 255550050560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55550050560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99007272000).

55550050560 is an abundant number, since it is smaller than the sum of its proper divisors (142464493440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55550050560 is a wasteful number, since it uses less digits than its factorization.

55550050560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278 (or 7258 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 55550050560 in words is "fifty-five billion, five hundred fifty million, fifty thousand, five hundred sixty".