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55512153505 = 5110310065667
BaseRepresentation
bin110011101100110010…
…000011110110100001
312022021201220120201101
4303230302003312201
51402142102403010
641300230034401
74003433343064
oct635462036641
9168251816641
1055512153505
11215a7188616
12a912aa8a01
135308a4a513
14298882c8db
15169d76573a
hexcecc83da1

55512153505 has 8 divisors (see below), whose sum is σ = 66674984832. Its totient is φ = 44369455728.

The previous prime is 55512153479. The next prime is 55512153509. The reversal of 55512153505 is 50535121555.

55512153505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55512153505 - 213 = 55512145313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55512153509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5027319 + ... + 5038348.

It is an arithmetic number, because the mean of its divisors is an integer number (8334373104).

Almost surely, 255512153505 is an apocalyptic number.

It is an amenable number.

55512153505 is a deficient number, since it is larger than the sum of its proper divisors (11162831327).

55512153505 is a wasteful number, since it uses less digits than its factorization.

55512153505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066775.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 55512153505 in words is "fifty-five billion, five hundred twelve million, one hundred fifty-three thousand, five hundred five".

Divisors: 1 5 1103 5515 10065667 50328335 11102430701 55512153505