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50042171 is a prime number
BaseRepresentation
bin1011111011100…
…1010100111011
310111011101221202
42332321110323
5100302322141
64544324415
71145231354
oct276712473
9114141852
1050042171
112627a473
121491370b
13a4a166a
146908d2b
1545d749b
hex2fb953b

50042171 has 2 divisors, whose sum is σ = 50042172. Its totient is φ = 50042170.

The previous prime is 50042147. The next prime is 50042173. The reversal of 50042171 is 17124005.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50042171 is a prime.

Together with 50042173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50042173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021085 + 25021086.

It is an arithmetic number, because the mean of its divisors is an integer number (25021086).

Almost surely, 250042171 is an apocalyptic number.

50042171 is a deficient number, since it is larger than the sum of its proper divisors (1).

50042171 is an equidigital number, since it uses as much as digits as its factorization.

50042171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 50042171 is about 7074.0491233805. The cubic root of 50042171 is about 368.5066936208.

Adding to 50042171 its reverse (17124005), we get a palindrome (67166176).

The spelling of 50042171 in words is "fifty million, forty-two thousand, one hundred seventy-one".