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55050555049 = 77864365007
BaseRepresentation
bin110011010001010001…
…001100111010101001
312021002120022221200021
4303101101030322221
51400220420230144
641142340240441
73656126666020
oct632121147251
9167076287607
1055050555049
112138a66a896
12a8043a0121
13526421c539
1429433d18b7
151672e85884
hexcd144cea9

55050555049 has 4 divisors (see below), whose sum is σ = 62914920064. Its totient is φ = 47186190036.

The previous prime is 55050555047. The next prime is 55050555061. The reversal of 55050555049 is 94055505055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55050555049 - 21 = 55050555047 is a prime.

It is a super-2 number, since 2×550505550492 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55050554996 and 55050555014.

It is not an unprimeable number, because it can be changed into a prime (55050555047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3932182497 + ... + 3932182510.

It is an arithmetic number, because the mean of its divisors is an integer number (15728730016).

Almost surely, 255050555049 is an apocalyptic number.

It is an amenable number.

55050555049 is a deficient number, since it is larger than the sum of its proper divisors (7864365015).

55050555049 is an equidigital number, since it uses as much as digits as its factorization.

55050555049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864365014.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 55050555049 in words is "fifty-five billion, fifty million, five hundred fifty-five thousand, forty-nine".

Divisors: 1 7 7864365007 55050555049