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54375724673 = 128934217461
BaseRepresentation
bin110010101001000010…
…111011011010000001
312012100112112000102122
4302221002323122001
51342330141142143
640551352254025
73633324014354
oct625102733201
9165315460378
1054375724673
1121073751836
12a6563a1315
13518748361a
1428bb92a29b
151633ad5c68
hexca90bb681

54375724673 has 4 divisors (see below), whose sum is σ = 54379955028. Its totient is φ = 54371494320.

The previous prime is 54375724661. The next prime is 54375724709. The reversal of 54375724673 is 37642757345.

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 25784972929 + 28590751744 = 160577^2 + 169088^2 .

It is a cyclic number.

It is not a de Polignac number, because 54375724673 - 216 = 54375659137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54375724573) 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, 2095838 + ... + 2121623.

It is an arithmetic number, because the mean of its divisors is an integer number (13594988757).

Almost surely, 254375724673 is an apocalyptic number.

It is an amenable number.

54375724673 is a deficient number, since it is larger than the sum of its proper divisors (4230355).

54375724673 is a wasteful number, since it uses less digits than its factorization.

54375724673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230354.

The product of its digits is 14817600, while the sum is 53.

The spelling of 54375724673 in words is "fifty-four billion, three hundred seventy-five million, seven hundred twenty-four thousand, six hundred seventy-three".

Divisors: 1 12893 4217461 54375724673