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550105507 = 7211226643
BaseRepresentation
bin100000110010011…
…111000110100011
31102100010020220001
4200302133012203
52111311334012
6130330400431
716426551100
oct4062370643
91370106801
10550105507
1126257a456
12134290117
1389c79523
14530b9aa7
1533464357
hex20c9f1a3

550105507 has 6 divisors (see below), whose sum is σ = 639918708. Its totient is φ = 471518964.

The previous prime is 550105483. The next prime is 550105541. The reversal of 550105507 is 705501055.

It is not a de Polignac number, because 550105507 - 223 = 541716899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550105597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5613273 + ... + 5613370.

It is an arithmetic number, because the mean of its divisors is an integer number (106653118).

Almost surely, 2550105507 is an apocalyptic number.

550105507 is a deficient number, since it is larger than the sum of its proper divisors (89813201).

550105507 is a wasteful number, since it uses less digits than its factorization.

550105507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11226657 (or 11226650 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 550105507 is about 23454.3281080486. The cubic root of 550105507 is about 819.3736576324.

The spelling of 550105507 in words is "five hundred fifty million, one hundred five thousand, five hundred seven".

Divisors: 1 7 49 11226643 78586501 550105507