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57775505 = 528374073
BaseRepresentation
bin1101110001100…
…1010110010001
311000201022002112
43130121112101
5104242304010
65422155105
71301040464
oct334312621
9130638075
1057775505
112a681657
1217422a95
13bc7b5b8
14795d2db
155113a05
hex3719591

57775505 has 8 divisors (see below), whose sum is σ = 69372072. Its totient is φ = 46192768.

The previous prime is 57775499. The next prime is 57775541. The reversal of 57775505 is 50557775.

57775505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2362369 + 55413136 = 1537^2 + 7444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57775505 - 26 = 57775441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12149 + ... + 16221.

It is an arithmetic number, because the mean of its divisors is an integer number (8671509).

Almost surely, 257775505 is an apocalyptic number.

It is an amenable number.

57775505 is a deficient number, since it is larger than the sum of its proper divisors (11596567).

57775505 is a wasteful number, since it uses less digits than its factorization.

57775505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915.

The product of its (nonzero) digits is 214375, while the sum is 41.

The square root of 57775505 is about 7601.0199973425. The cubic root of 57775505 is about 386.5875973710.

The spelling of 57775505 in words is "fifty-seven million, seven hundred seventy-five thousand, five hundred five".

Divisors: 1 5 2837 4073 14185 20365 11555101 57775505