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56575473185 = 5711146949281
BaseRepresentation
bin110100101100001010…
…010011011000100001
312102000211201211002202
4310230022103120201
51411331310120220
641553532422545
74041664405340
oct645412233041
9172024654082
1056575473185
1121aa241a410
12ab6b017a55
13544812766a
142a49b3db57
151711ca3275
hexd2c293621

56575473185 has 16 divisors (see below), whose sum is σ = 84642786432. Its totient is φ = 35267827200.

The previous prime is 56575473167. The next prime is 56575473193. The reversal of 56575473185 is 58137457565.

It is not a de Polignac number, because 56575473185 - 212 = 56575469089 is a prime.

It is a super-2 number, since 2×565754731852 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56575473185.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73474256 + ... + 73475025.

It is an arithmetic number, because the mean of its divisors is an integer number (5290174152).

Almost surely, 256575473185 is an apocalyptic number.

56575473185 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56575473185 is a deficient number, since it is larger than the sum of its proper divisors (28067313247).

56575473185 is a wasteful number, since it uses less digits than its factorization.

56575473185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146949304.

The product of its digits is 17640000, while the sum is 56.

The spelling of 56575473185 in words is "fifty-six billion, five hundred seventy-five million, four hundred seventy-three thousand, one hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 146949281 734746405 1028644967 1616442091 5143224835 8082210455 11315094637 56575473185