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57925889 = 721962219
BaseRepresentation
bin1101110011111…
…0000100000001
311000222221101022
43130332010001
5104312112024
65425315225
71302235100
oct334760401
9130887338
1057925889
112a77463a
1217495b15
13c001b98
14799c037
15514335e
hex373e101

57925889 has 12 divisors (see below), whose sum is σ = 70930800. Its totient is φ = 47036808.

The previous prime is 57925867. The next prime is 57925909. The reversal of 57925889 is 98852975.

It is not a de Polignac number, because 57925889 - 212 = 57921793 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57925889.

It is not an unprimeable number, because it can be changed into a prime (57925849) 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, 30179 + ... + 32040.

It is an arithmetic number, because the mean of its divisors is an integer number (5910900).

Almost surely, 257925889 is an apocalyptic number.

It is an amenable number.

57925889 is a deficient number, since it is larger than the sum of its proper divisors (13004911).

57925889 is a wasteful number, since it uses less digits than its factorization.

57925889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62252 (or 62245 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 53.

The square root of 57925889 is about 7610.9059250525. The cubic root of 57925889 is about 386.9227233659.

The spelling of 57925889 in words is "fifty-seven million, nine hundred twenty-five thousand, eight hundred eighty-nine".

Divisors: 1 7 19 49 133 931 62219 435533 1182161 3048731 8275127 57925889