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53258581 is a prime number
BaseRepresentation
bin1100101100101…
…0100101010101
310201012211001001
43023022211111
5102113233311
65141303301
71214455555
oct313124525
9121184031
1053258581
1128076a62
1215a04b31
13b05966c
147105165
154a204c1
hex32ca955

53258581 has 2 divisors, whose sum is σ = 53258582. Its totient is φ = 53258580.

The previous prime is 53258563. The next prime is 53258617. The reversal of 53258581 is 18585235.

53258581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 3837681 = 7030^2 + 1959^2 .

It is a cyclic number.

It is not a de Polignac number, because 53258581 - 27 = 53258453 is a prime.

It is a super-2 number, since 2×532585812 = 5672952900267122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53258581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53250581) 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 as a sum of consecutive naturals, namely, 26629290 + 26629291.

It is an arithmetic number, because the mean of its divisors is an integer number (26629291).

Almost surely, 253258581 is an apocalyptic number.

It is an amenable number.

53258581 is a deficient number, since it is larger than the sum of its proper divisors (1).

53258581 is an equidigital number, since it uses as much as digits as its factorization.

53258581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 37.

The square root of 53258581 is about 7297.8476964102. The cubic root of 53258581 is about 376.2384677282.

The spelling of 53258581 in words is "fifty-three million, two hundred fifty-eight thousand, five hundred eighty-one".