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57000053 = 116478009
BaseRepresentation
bin1101100101110…
…0000001110101
310222020220101002
43121130001311
5104043000203
65353413045
71261330625
oct331340165
9128226332
1057000053
112a1a1a90
121710a185
13ba69656
1477da885
15500dd88
hex365c075

57000053 has 8 divisors (see below), whose sum is σ = 62285760. Its totient is φ = 51731680.

The previous prime is 57000037. The next prime is 57000059. The reversal of 57000053 is 35000075.

57000053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57000053 - 24 = 57000037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56999989 and 57000034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000059) by changing a digit.

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, 3113 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (7785720).

Almost surely, 257000053 is an apocalyptic number.

It is an amenable number.

57000053 is a deficient number, since it is larger than the sum of its proper divisors (5285707).

57000053 is a wasteful number, since it uses less digits than its factorization.

57000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8667.

The product of its (nonzero) digits is 525, while the sum is 20.

The square root of 57000053 is about 7549.8379452807. The cubic root of 57000053 is about 384.8502324087.

The spelling of 57000053 in words is "fifty-seven million, fifty-three", and thus it is an aban number and an uban number.

Divisors: 1 11 647 7117 8009 88099 5181823 57000053