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55005028007 = 165733195551
BaseRepresentation
bin110011001110100011…
…100001111010100111
312020222101122221022112
4303032203201322213
51400122241344012
641134032351235
73655035011066
oct631643417247
9166871587275
1055005028007
11213669a4736
12a7b10a551b
13525796c067
14293b3401dd
15166de91122
hexcce8e1ea7

55005028007 has 4 divisors (see below), whose sum is σ = 55038225216. Its totient is φ = 54971830800.

The previous prime is 55005027997. The next prime is 55005028021. The reversal of 55005028007 is 70082050055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55005028007 - 24 = 55005027991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005028027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16596119 + ... + 16599432.

It is an arithmetic number, because the mean of its divisors is an integer number (13759556304).

Almost surely, 255005028007 is an apocalyptic number.

55005028007 is a deficient number, since it is larger than the sum of its proper divisors (33197209).

55005028007 is a wasteful number, since it uses less digits than its factorization.

55005028007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33197208.

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 55005028007 in words is "fifty-five billion, five million, twenty-eight thousand, seven".

Divisors: 1 1657 33195551 55005028007