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56676565 = 5112234621
BaseRepresentation
bin1101100000110…
…1000011010101
310221122110122001
43120031003111
5104002122230
65342435301
71255512541
oct330150325
9127573561
1056676565
1129aa0a40
1216b92b31
13b98533a
147754a21
154e980ca
hex360d0d5

56676565 has 16 divisors (see below), whose sum is σ = 74543616. Its totient is φ = 41025600.

The previous prime is 56676541. The next prime is 56676661. The reversal of 56676565 is 56567665.

It is not a de Polignac number, because 56676565 - 25 = 56676533 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 9955 + ... + 14575.

It is an arithmetic number, because the mean of its divisors is an integer number (4658976).

Almost surely, 256676565 is an apocalyptic number.

56676565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56676565 is a deficient number, since it is larger than the sum of its proper divisors (17867051).

56676565 is a wasteful number, since it uses less digits than its factorization.

56676565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its digits is 1134000, while the sum is 46.

The square root of 56676565 is about 7528.3839567333. The cubic root of 56676565 is about 384.1208138556.

Subtracting from 56676565 its reverse (56567665), we obtain a square (108900 = 3302).

The spelling of 56676565 in words is "fifty-six million, six hundred seventy-six thousand, five hundred sixty-five".

Divisors: 1 5 11 55 223 1115 2453 4621 12265 23105 50831 254155 1030483 5152415 11335313 56676565