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54681775 = 5217128663
BaseRepresentation
bin1101000010011…
…0000010101111
310210220010021221
43100212002233
5102444304100
65232004211
71232534041
oct320460257
9123803257
1054681775
1128959255
1216390667
13b4373a5
147395a91
154c0201a
hex34260af

54681775 has 12 divisors (see below), whose sum is σ = 71794512. Its totient is φ = 41171840.

The previous prime is 54681751. The next prime is 54681779. The reversal of 54681775 is 57718645.

It is not a de Polignac number, because 54681775 - 27 = 54681647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54681779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63907 + ... + 64756.

It is an arithmetic number, because the mean of its divisors is an integer number (5982876).

Almost surely, 254681775 is an apocalyptic number.

54681775 is a deficient number, since it is larger than the sum of its proper divisors (17112737).

54681775 is a wasteful number, since it uses less digits than its factorization.

54681775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128690 (or 128685 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 54681775 is about 7394.7126380949. The cubic root of 54681775 is about 379.5603757103.

The spelling of 54681775 in words is "fifty-four million, six hundred eighty-one thousand, seven hundred seventy-five".

Divisors: 1 5 17 25 85 425 128663 643315 2187271 3216575 10936355 54681775