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55610005105 = 511122001021
BaseRepresentation
bin110011110010100111…
…010101011001110001
312022112120000221212201
4303302213111121301
51402342130130410
641314043223201
74006032146524
oct636247253161
9168476027781
1055610005105
1121647441a06
12a93b817b01
1353230bb185
142997820bbb
1516a714383a
hexcf29d5671

55610005105 has 4 divisors (see below), whose sum is σ = 66732006132. Its totient is φ = 44488004080.

The previous prime is 55610005103. The next prime is 55610005133. The reversal of 55610005105 is 50150001655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23671668736 + 31938336369 = 153856^2 + 178713^2 .

It is not a de Polignac number, because 55610005105 - 21 = 55610005103 is a prime.

It is a super-2 number, since 2×556100051052 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55610005103) 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, 5561000506 + ... + 5561000515.

It is an arithmetic number, because the mean of its divisors is an integer number (16683001533).

Almost surely, 255610005105 is an apocalyptic number.

It is an amenable number.

55610005105 is a deficient number, since it is larger than the sum of its proper divisors (11122001027).

55610005105 is a wasteful number, since it uses less digits than its factorization.

55610005105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122001026.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 55610005105 in words is "fifty-five billion, six hundred ten million, five thousand, one hundred five".

Divisors: 1 5 11122001021 55610005105