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56560560769 = 178273172747
BaseRepresentation
bin110100101011010001…
…011010101010000001
312101222210200012010001
4310223101122222001
51411314000421034
641552241040001
74041423556036
oct645321325201
9171883605101
1056560560769
1121a94a644a9
12ab66026001
135445005b4b
142a47b7b38d
151710809a14
hexd2b45aa81

56560560769 has 4 divisors (see below), whose sum is σ = 56563751344. Its totient is φ = 56557370196.

The previous prime is 56560560739. The next prime is 56560560773. The reversal of 56560560769 is 96706506565.

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 56560560769 - 215 = 56560528001 is a prime.

It is a super-2 number, since 2×565605607692 (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 (56560560709) 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, 1568547 + ... + 1604200.

It is an arithmetic number, because the mean of its divisors is an integer number (14140937836).

Almost surely, 256560560769 is an apocalyptic number.

It is an amenable number.

56560560769 is a deficient number, since it is larger than the sum of its proper divisors (3190575).

56560560769 is a wasteful number, since it uses less digits than its factorization.

56560560769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190574.

The product of its (nonzero) digits is 10206000, while the sum is 55.

The spelling of 56560560769 in words is "fifty-six billion, five hundred sixty million, five hundred sixty thousand, seven hundred sixty-nine".

Divisors: 1 17827 3172747 56560560769