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54222001 is a prime number
BaseRepresentation
bin1100111011010…
…1110010110001
310210000202121021
43032311302301
5102340101001
65214055441
71225610431
oct316656261
9123022537
1054222001
1128674879
12161aa581
13b306032
1472b62c1
154b60ba1
hex33b5cb1

54222001 has 2 divisors, whose sum is σ = 54222002. Its totient is φ = 54222000.

The previous prime is 54221987. The next prime is 54222013. The reversal of 54222001 is 10022245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 25492401 = 5360^2 + 5049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54222001 is a prime.

It is a super-5 number, since 5×542220015 (a number of 40 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (54222031) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27111000 + 27111001.

It is an arithmetic number, because the mean of its divisors is an integer number (27111001).

Almost surely, 254222001 is an apocalyptic number.

It is an amenable number.

54222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

54222001 is an equidigital number, since it uses as much as digits as its factorization.

54222001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 54222001 is about 7363.5589900537. The cubic root of 54222001 is about 378.4935766474.

Adding to 54222001 its reverse (10022245), we get a palindrome (64244246).

The spelling of 54222001 in words is "fifty-four million, two hundred twenty-two thousand, one".